Wikipedia:WikiProject Geology/Popular pages

This is a list of pages in the scope of Wikipedia:WikiProject Geology along with their pageviews, including all redirects.

List

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Period: 2024-08-01 to 2024-08-31

Total views: 21,082,926

Updated: 02:26, 7 September 2024 (UTC)

Rank Page title Views Daily average Assessment Importance
1 Earth 395,648 12,762 FA Top
2 Mount Everest 299,522 9,662 B Mid
3 2024 Wayanad landslides 258,634 8,343 B Low
4 Continent 181,805 5,864 C High
5 Chicxulub crater 151,357 4,882 FA High
6 Perseids 147,444 4,756 C Low
7 Gold 117,958 3,805 B Mid
8 Mariana Trench 117,702 3,796 C Mid
9 Fracking 116,554 3,759 C Mid
10 Mount Vesuvius 109,767 3,540 B Mid
11 Nankai megathrust earthquakes 109,721 3,539 C Low
12 Charles Darwin 104,644 3,375 FA Mid
13 Yellowstone National Park 94,845 3,059 B High
14 Climate change 92,473 2,983 FA High
15 Asbestos 87,494 2,822 B Low
16 Niagara Falls 86,547 2,791 B Mid
17 Plate tectonics 86,306 2,784 B Top
18 Monte Carlo 77,486 2,499 C Low
19 Lists of earthquakes 77,320 2,494 List High
20 Pangaea 76,712 2,474 B High
21 Geologic time scale 76,689 2,473 B Top
22 Mount St. Helens 72,955 2,353 B High
23 Tsunami 69,887 2,254 B High
24 Volcano 69,524 2,242 B Top
25 Indian subcontinent 68,391 2,206 B High
26 Earthquake 68,264 2,202 C Top
27 Diamond 68,021 2,194 FA Mid
28 San Andreas Fault 66,368 2,140 C High
29 Kola Superdeep Borehole 65,670 2,118 C Low
30 Ring of Fire 64,962 2,095 C High
31 Obsidian 62,722 2,023 C High
32 Quartz 61,891 1,996 B Top
33 Rocky Mountains 61,641 1,988 B High
34 Cretaceous–Paleogene extinction event 61,331 1,978 FA High
35 Diatomaceous earth 59,458 1,918 B Low
36 Nankai Trough 58,852 1,898 Start Low
37 1980 eruption of Mount St. Helens 57,662 1,860 FA High
38 Tunguska event 57,564 1,856 B Mid
39 1958 Lituya Bay earthquake and megatsunami 57,383 1,851 B Low
40 Quicksand 56,248 1,814 Start Low
41 Grand Canyon 54,481 1,757 B High
42 Death Valley 53,671 1,731 C Top
43 Richat Structure 53,587 1,728 B Low
44 Hydrogen sulfide 53,423 1,723 B Low
45 Holocene 53,301 1,719 C High
46 Atmosphere of Earth 53,301 1,719 C High
47 Ice age 52,961 1,708 B Top
48 Youngest Toba eruption 52,172 1,682 B Low
49 Planet 52,163 1,682 FA Mid
50 Sapphire 51,861 1,672 B Mid
51 Limestone 51,279 1,654 C Top
52 Gondwana 50,721 1,636 B High
53 1883 eruption of Krakatoa 49,103 1,583 B Low
54 Archaea 48,760 1,572 FA High
55 Figure of the Earth 48,516 1,565 C Mid
56 1960 Valdivia earthquake 47,685 1,538 C High
57 Australia (continent) 47,437 1,530 C High
58 Pyrite 46,988 1,515 C Mid
59 Pleistocene 46,654 1,504 B High
60 Sinkhole 45,559 1,469 C Low
61 Victoria Falls 44,220 1,426 B Mid
62 Amethyst 44,087 1,422 C Mid
63 Timeline of the far future 43,967 1,418 FL Mid
64 Cretaceous 43,703 1,409 B Top
65 Yellowstone Caldera 42,678 1,376 C High
66 Abiogenesis 42,248 1,362 GA High
67 Silicon dioxide 41,795 1,348 B High
68 San Fernando Valley 41,433 1,336 Start Low
69 Mountain 40,855 1,317 B High
70 Permian–Triassic extinction event 40,825 1,316 B High
71 2023 Turkey–Syria earthquakes 40,045 1,291 B Mid
72 Fossil fuel 39,370 1,270 C High
73 Richter scale 39,161 1,263 C High
74 Amber 38,804 1,251 B Mid
75 Crater Lake 38,581 1,244 GA Mid
76 Gypsum 38,411 1,239 C Mid
77 Black Stone 38,345 1,236 GA Low
78 Igneous rock 38,176 1,231 B Top
79 Challenger Deep 38,131 1,230 C Mid
80 Jurassic 37,703 1,216 B Top
81 Mount Sinai 37,635 1,214 Start Mid
82 History of Earth 37,514 1,210 B Top
83 Landslide 37,294 1,203 B High
84 Megathrust earthquake 37,094 1,196 Start Mid
85 Devon 36,646 1,182 C Mid
86 Desert 36,619 1,181 GA Mid
87 Extinction event 36,361 1,172 B High
88 Meteor shower 36,032 1,162 C Low
89 Coal 35,938 1,159 C High
90 Greenhouse gas 35,348 1,140 B Mid
91 Metal 35,347 1,140 C Mid
92 Granite 35,321 1,139 B Top
93 Basalt 35,061 1,131 GA Top
94 Moissanite 34,397 1,109 C Low
95 1906 San Francisco earthquake 34,152 1,101 C High
96 Ruby 34,036 1,097 B Mid
97 Doggerland 34,027 1,097 C Low
98 Carboniferous 34,025 1,097 B Top
99 Zealandia 33,969 1,095 C Mid
100 Cenote 33,967 1,095 Start Low
101 Emerald 33,872 1,092 C Low
102 List of impact structures on Earth 33,854 1,092 List Mid
103 Cambrian 33,750 1,088 B Top
104 Precambrian 33,501 1,080 B Top
105 Clade 33,471 1,079 C Mid
106 Younger Dryas 33,411 1,077 B Low
107 San Pedro Valley 33,365 1,076 Start Low
108 Gemstone 33,253 1,072 C Low
109 Karst 32,783 1,057 C Mid
110 Stratovolcano 32,690 1,054 C Mid
111 Estuary 32,458 1,047 C Mid
112 Supervolcano 32,220 1,039 Start Mid
113 Canadian Shield 31,845 1,027 C High
114 Earth's rotation 31,685 1,022 B High
115 Natural environment 31,494 1,015 B High
116 Triassic 31,402 1,012 B Top
117 Calcium carbonate 31,244 1,007 B Top
118 Agate 31,156 1,005 C Low
119 Mica 30,822 994 B Mid
120 Jade 30,232 975 B Mid
121 List of deserts by area 30,101 971 List Low
122 Pyroclastic flow 30,098 970 C Mid
123 Nickel 29,995 967 GA High
124 Sedimentary rock 29,890 964 B Top
125 Iridium 29,744 959 B Mid
126 Caldera 29,668 957 C High
127 Fossil 29,658 956 B Top
128 Last Glacial Period 29,518 952 B Mid
129 Water cycle 29,225 942 C High
130 Fjord 28,987 935 C High
131 Permian 28,941 933 B Top
132 Devonian 28,727 926 B Top
133 Mineral 28,724 926 B Top
134 Mauna Loa 28,481 918 FA High
135 Theia (planet) 28,296 912 C Low
136 List of tectonic plates 28,197 909 List Low
137 Late Pleistocene extinctions 28,126 907 C Low
138 Karakoram 27,895 899 C Unknown
139 River 27,662 892 GA High
140 Cliffs of Moher 27,643 891 C Low
141 Before Present 27,619 890 Start Mid
142 Mohs scale 27,572 889 C Mid
143 Glacier 27,547 888 B Top
144 Garnet 27,471 886 B Mid
145 Gulf of Mexico 27,447 885 B High
146 Drainage basin 27,224 878 C High
147 Xiaozhai Tiankeng 27,110 874 Start Low
148 Megatsunami 27,061 872 B Mid
149 Arthur's Seat 26,952 869 C Mid
150 Meteoroid 26,695 861 C Mid
151 Phylum 26,498 854 C Mid
152 Mesozoic 26,194 844 Start High
153 Holocene extinction 26,070 840 B Mid
154 Apennine Mountains 25,881 834 C Low
155 Great Rift Valley 25,817 832 C High
156 Tourmaline 25,759 830 B Mid
157 Neogene 25,749 830 B Top
158 Lithosphere 25,650 827 C High
159 Talc 25,480 821 C Mid
160 Paleontology 25,421 820 GA Top
161 Endorheic basin 25,164 811 C Low
162 Paleogene 25,091 809 C Top
163 Rock (geology) 24,982 805 C Top
164 Hadean 24,928 804 B Mid
165 Earth's inner core 24,889 802 B High
166 Hematite 24,731 797 B High
167 1815 eruption of Mount Tambora 24,729 797 C Low
168 Peridot 24,553 792 C Mid
169 Plankton 24,503 790 C Mid
170 Rock of Gibraltar 24,477 789 C Mid
171 Iron ore 24,431 788 C Mid
172 Marble 24,378 786 Start High
173 Turquoise 24,361 785 B Mid
174 Cenozoic 24,291 783 C High
175 Earth's magnetic field 24,264 782 GA Top
176 Clay 24,210 780 B Mid
177 Soil 24,116 777 B Top
178 Cinnabar 24,115 777 C Mid
179 Ordovician 24,084 776 B Top
180 Natural resource 24,039 775 C Low
181 Meteor Crater 24,037 775 B Mid
182 Feldspar 23,923 771 Start Top
183 Mining 23,857 769 B Mid
184 Rodinia 23,849 769 B High
185 Seismic magnitude scales 23,771 766 Start High
186 Earth's circumference 23,753 766 C High
187 Beryl 23,728 765 C Mid
188 Metamorphic rock 23,657 763 B Top
189 Future of Earth 23,639 762 GA Mid
190 Vredefort impact structure 23,591 761 Start Mid
191 Convergent boundary 23,517 758 Start Mid
192 Beringia 23,469 757 B Mid
193 Rare-earth element 23,120 745 C Mid
194 Stone of Scone 23,115 745 C High
195 Shield volcano 23,050 743 B High
196 Rub' al Khali 23,004 742 Start High
197 Topaz 22,975 741 C Low
198 Monument Valley 22,970 740 B Mid
199 Asteroid 22,957 740 B Mid
200 Gehenna 22,765 734 C Low
201 Valley of the Kings 22,730 733 GA Mid
202 Radiocarbon dating 22,704 732 FA Top
203 Pangaea Proxima 22,567 727 Start Mid
204 Geology 22,502 725 C Top
205 Puente Hills Fault 22,449 724 Start Low
206 Internal structure of Earth 22,442 723 C High
207 Zeolite 22,201 716 B Mid
208 Carnelian 22,183 715 Start Low
209 Subduction 22,112 713 B Top
210 Bauxite 22,012 710 C Mid
211 Everglades 21,983 709 GA Mid
212 Fault (geology) 21,781 702 C Top
213 Quaternary 21,717 700 C High
214 Pamukkale 21,580 696 Start Mid
215 Continental drift 21,408 690 B High
216 Snowball Earth 21,370 689 B High
217 Phanerozoic 21,240 685 B High
218 Volcanic explosivity index 21,165 682 Start Mid
219 Paleozoic 21,136 681 B High
220 Malachite 21,129 681 C High
221 Calcite 21,114 681 C Mid
222 Coal mining 21,099 680 B Low
223 Lava 21,070 679 B Top
224 Aquifer 20,950 675 B Low
225 Corundum 20,920 674 C Low
226 Miocene 20,723 668 C High
227 Flint 20,673 666 Start Low
228 Badlands 20,671 666 Start Mid
229 Supercontinent 20,629 665 C High
230 Babi Yar 20,627 665 B High
231 Cambrian explosion 20,594 664 B High
232 Geothermal energy 20,567 663 B High
233 Kaolinite 20,439 659 C Low
234 Chalcedony 20,436 659 Start Low
235 Diatom 20,411 658 B High
236 List of minerals 20,282 654 List High
237 Petoskey stone 20,115 648 C High
238 Blue hole 20,030 646 Start Low
239 Impact event 19,774 637 B High
240 Silurian 19,667 634 B Top
241 Anthropocene 19,638 633 B Mid
242 Great Oxidation Event 19,630 633 C High
243 Meteorite 19,627 633 B High
244 Sand 19,555 630 C Mid
245 Great Basin 19,549 630 C Mid
246 Chelyabinsk meteor 19,453 627 B High
247 Central Valley (California) 19,246 620 B Low
248 Convergent evolution 19,201 619 GA Mid
249 Eocene 19,196 619 B High
250 Plateau 19,175 618 Start High
251 Driftless Area 19,121 616 B Mid
252 Archean 19,043 614 C High
253 Moldavite 19,042 614 Start Low
254 Gravity of Earth 18,892 609 B High
255 Broken Ridge 18,809 606 Start Mid
256 Chalk 18,753 604 C Low
257 Younger Dryas impact hypothesis 18,669 602 C Mid
258 2022 Hunga Tonga–Hunga Haʻapai eruption and tsunami 18,558 598 B Low
259 Minoan eruption 18,451 595 GA Low
260 Spherical harmonics 18,314 590 Start Mid
261 Yonaguni Monument 18,224 587 Start Low
262 Antediluvian 18,194 586 B Low
263 Anthracite 18,119 584 Start Mid
264 Mount Sinai (Bible) 18,115 584 B Low
265 Phases of ice 18,057 582 C Top
266 Tethys Ocean 18,040 581 C High
267 Aquamarine (gem) 18,004 580 C Low
268 Levee 17,960 579 Start Mid
269 List of largest volcanic eruptions 17,908 577 FL Mid
270 Seismic wave 17,833 575 C High
271 Sandstone 17,745 572 C Mid
272 Beach 17,745 572 C Low
273 Earth science 17,739 572 C Top
274 Avalanche 17,635 568 B High
275 Deccan Traps 17,275 557 Start Mid
276 Travertine 17,266 556 C Low
277 Lake Toba 17,159 553 GA High
278 List of rock types 17,054 550 List High
279 Afro-Eurasia 17,004 548 Start Mid
280 Bosnian pyramid claims 16,952 546 C Unknown
281 Age of Earth 16,947 546 B Top
282 History of life 16,911 545 GA Top
283 Littoral zone 16,880 544 Start Low
284 River delta 16,740 540 C High
285 Alabaster 16,713 539 Start Low
286 List of tsunamis 16,696 538 C Mid
287 Global catastrophic risk 16,645 536 B Low
288 Divergent boundary 16,633 536 Start Mid
289 Mary Anning 16,583 534 FA High
290 Waterfall 16,583 534 B Mid
291 Hot spring 16,494 532 B Mid
292 Scientific law 16,465 531 C Mid
293 Cummingtonite 16,414 529 Start Low
294 Ice 16,385 528 GA Top
295 Zircon 16,213 523 B Mid
296 Last Glacial Maximum 16,161 521 C Mid
297 Fluorite 16,094 519 B Mid
298 Lahar 16,057 517 C Low
299 Milankovitch cycles 15,967 515 B High
300 Olivine 15,912 513 C High
301 Labradorite 15,899 512 Start Low
302 Pliocene 15,868 511 B High
303 Groundwater 15,852 511 C High
304 Bentonite 15,767 508 C Mid
305 Dune 15,751 508 C High
306 Artesian well 15,724 507 Start Mid
307 Young Earth creationism 15,521 500 B High
308 Types of volcanic eruptions 15,476 499 GA High
309 Silicate mineral 15,447 498 Start Mid
310 Geode 15,412 497 C Mid
311 Pumice 15,333 494 C High
312 Shoal 15,237 491 C Low
313 Earth's orbit 15,163 489 B High
314 Proterozoic 15,152 488 C High
315 Epicenter 15,146 488 C High
316 East African Rift 15,098 487 B Mid
317 Wilkes Land crater 15,042 485 B Mid
318 Laminar flow 14,975 483 C Mid
319 Magma 14,973 483 B Top
320 Hudson Valley 14,922 481 C Mid
321 Natural History Museum, London 14,832 478 C Mid
322 Sea level rise 14,801 477 GA High
323 Eternal flame 14,799 477 Start Low
324 Crystal skull 14,771 476 B Low
325 Canyon 14,770 476 Start Mid
326 Magnetite 14,656 472 C High
327 Triassic–Jurassic extinction event 14,593 470 C High
328 Slate 14,441 465 Start Mid
329 Vermiculite 14,397 464 B Mid
330 Chert 14,385 464 B Mid
331 Quartzite 14,339 462 Start Low
332 Western Interior Seaway 14,180 457 C Mid
333 Gneiss 14,160 456 Start Mid
334 Pierre Teilhard de Chardin 14,073 453 B Low
335 Chesapeake Bay impact crater 14,048 453 Start Low
336 Sea level 14,047 453 Start High
337 Lignite 14,045 453 C Low
338 Swamp 14,017 452 C Low
339 Soapstone 13,910 448 C Mid
340 Continental shelf 13,850 446 Start Mid
341 Laurasia 13,805 445 B High
342 Carbon capture and storage 13,802 445 C Mid
343 Shale 13,800 445 C Mid
344 Spring (hydrology) 13,751 443 C Mid
345 North magnetic pole 13,744 443 B High
346 Valley 13,690 441 C High
347 Old Faithful 13,660 440 B Mid
348 Badlands National Park 13,647 440 B Low
349 Salar de Uyuni 13,642 440 C Low
350 Schist 13,585 438 Start Mid
351 United States Geological Survey 13,547 437 B High
352 Erosion 13,530 436 C Top
353 Timeline of the evolutionary history of life 13,528 436 B Mid
354 Dolomite (mineral) 13,512 435 C Mid
355 Transform fault 13,499 435 C High
356 Ore 13,492 435 Start Top
357 Indo-Gangetic Plain 13,413 432 C High
358 Late Pleistocene 13,361 431 Start Mid
359 Earth's crust 13,323 429 C High
360 Niagara Escarpment 13,314 429 Start Low
361 Jurassic Coast 13,175 425 GA Mid
362 Loire Valley 13,159 424 Start Mid
363 Stromatolite 13,121 423 B Top
364 List of lost lands 13,112 422 List Mid
365 David A. Johnston 13,104 422 FA Low
366 Stream 13,085 422 Start Mid
367 Cave 13,071 421 B Mid
368 Rockall 13,050 420 B Mid
369 Mid-Atlantic Ridge 13,009 419 Start High
370 Geomagnetic reversal 12,987 418 C High
371 Geyser 12,960 418 GA High
372 Alfred Wegener 12,908 416 C Mid
373 Moraine 12,846 414 Start Low
374 Bedrock 12,835 414 Start Mid
375 Alluvium 12,826 413 Start High
376 Hydrothermal vent 12,786 412 C Mid
377 Weathering 12,766 411 C Top
378 Ground-penetrating radar 12,707 409 Start Mid
379 Mississippi Delta 12,705 409 C Low
380 Lake Peigneur 12,647 407 C Mid
381 Cave of the Crystals 12,632 407 B Mid
382 Soil erosion 12,626 407 C Mid
383 Oxbow lake 12,610 406 B Mid
384 Zanclean flood 12,568 405 B Low
385 Manganese nodule 12,564 405 C Mid
386 Giant-impact hypothesis 12,460 401 B High
387 Gold mining 12,454 401 C Unknown
388 Lehigh Valley 12,321 397 B Unknown
389 Quaternary glaciation 12,288 396 B Low
390 Abundance of elements in Earth's crust 12,198 393 List Mid
391 Moment magnitude scale 12,163 392 C Mid
392 Fiber 12,144 391 C Low
393 Glossary of landforms 12,097 390 List Mid
394 Siberian Traps 12,089 389 Start High
395 Plain 12,052 388 Start Mid
396 2008 Sichuan earthquake 12,050 388 B Mid
397 Bryce Canyon National Park 11,969 386 FA High
398 Dolomite (rock) 11,903 383 Start Mid
399 Selenite (mineral) 11,898 383 C Mid
400 Mount Horeb 11,887 383 B Low
401 Hoodoo (geology) 11,859 382 Start Mid
402 Oceanic trench 11,853 382 B High
403 Cagayan Valley 11,814 381 Start Low
404 Natural nuclear fission reactor 11,811 381 C Low
405 Texas Hill Country 11,790 380 C Low
406 Laurentia 11,713 377 C High
407 Grand Prismatic Spring 11,695 377 Start Mid
408 Origin of water on Earth 11,674 376 C High
409 Ediacaran 11,591 373 B High
410 Kursk Magnetic Anomaly 11,590 373 Start Low
411 Escarpment 11,580 373 Start Mid
412 Limnic eruption 11,580 373 B Mid
413 Natural history 11,477 370 C High
414 Fumarole 11,449 369 Start Mid
415 Quarry 11,366 366 Start Mid
416 Trinitite 11,358 366 C Low
417 1989 Newcastle earthquake 11,328 365 C Low
418 Sintering 11,291 364 C Mid
419 Pannonian Basin 11,265 363 Start Mid
420 Carolina bays 11,241 362 C Low
421 Patina 11,216 361 C Low
422 Preikestolen 11,179 360 C High
423 Hydrosphere 11,113 358 C High
424 Mid-ocean ridge 11,086 357 C High
425 Cubic crystal system 11,049 356 C Low
426 Massif 11,035 355 Start Mid
427 San Joaquin Valley 10,993 354 C Low
428 Riprap 10,966 353 Stub Low
429 2024 Kuala Lumpur sinkhole 10,917 352 Start Low
430 Earth's mantle 10,897 351 B Top
431 Cryogenian 10,851 350 Start Mid
432 Tuff 10,834 349 C High
433 Exoskeleton 10,811 348 C Low
434 Arabian Desert 10,806 348 Start High
435 Plinian eruption 10,750 346 C Mid
436 Hypocenter 10,749 346 Start High
437 Messinian salinity crisis 10,715 345 Start Mid
438 Late Cretaceous 10,682 344 Start Low
439 Cretaceous–Paleogene boundary 10,644 343 C High
440 Congo Basin 10,535 339 Start Low
441 Indian Ocean Geoid Low 10,523 339 Start Mid
442 Shenandoah Valley 10,509 339 C High
443 Earth's outer core 10,504 338 Start High
444 Birefringence 10,411 335 B Mid
445 Long Island Sound 10,385 335 B Mid
446 Volcanism of Italy 10,369 334 Start Mid
447 List of natural phenomena 10,364 334 Stub Unknown
448 Inland sea 10,355 334 Start Mid
449 Geodesy 10,354 334 C Mid
450 Water table 10,322 332 Start Mid
451 Iranian Plateau 10,320 332 C Mid
452 Peak oil 10,255 330 C High
453 Sundaland 10,241 330 Start Low
454 Rhyolite 10,221 329 B High
455 Stalactite 10,204 329 Start Low
456 Late Heavy Bombardment 10,199 329 C Mid
457 Lodestone 10,148 327 Start Low
458 Inselberg 10,091 325 C Mid
459 Berkshires 10,011 322 C Low
460 Serpentinite 9,989 322 B High
461 Jezreel Valley 9,957 321 C Low
462 Amasia (supercontinent) 9,956 321 Stub Mid
463 Paleocene 9,929 320 FA High
464 Wadi 9,894 319 Start Low
465 Bolide 9,878 318 C High
466 Beqaa Valley 9,854 317 C Unknown
467 Late Ordovician mass extinction 9,850 317 Start High
468 Armenian highlands 9,844 317 C Low
469 Lake Agassiz 9,797 316 C Low
470 List of places on land with elevations below sea level 9,748 314 List Low
471 Apatite 9,734 314 C Mid
472 Porphyry (geology) 9,715 313 Start Mid
473 Gulf of Aqaba 9,707 313 C Low
474 Landform 9,705 313 Start High
475 Oligocene 9,691 312 B High
476 Oceanic basin 9,647 311 Start High
477 Ogallala Aquifer 9,645 311 B High
478 Land of Goshen 9,575 308 C Low
479 Dal Lake 9,559 308 GA Low
480 Near-Earth object 9,540 307 GA Mid
481 Silt 9,525 307 Start Mid
482 Perlite 9,515 306 C Mid
483 Fulgurite 9,498 306 C Low
484 Summit 9,484 305 Start Mid
485 Willamette Valley 9,455 305 C Unknown
486 Nile Delta 9,349 301 C Mid
487 List of landslides 9,290 299 List Mid
488 Baryte 9,280 299 C Low
489 Morganite (gem) 9,271 299 Stub Mid
490 Henry Cavendish 9,250 298 B Mid
491 Chrysoberyl 9,202 296 Start Mid
492 Chota Nagpur Plateau 9,190 296 C Mid
493 Craton 9,177 296 Start Mid
494 Timeline of first images of Earth from space 9,170 295 List Low
495 Orogeny 9,159 295 C High
496 Mohorovičić discontinuity 9,158 295 Start Mid
497 Carbon sequestration 9,146 295 B Low
498 Sierra Madre Occidental 9,136 294 B Low
499 Billabong 9,125 294 Start Low
500 Coachella Valley 9,121 294 B Low
501 Panjshir Valley 9,116 294 Start Unknown
502 Llano Estacado 9,077 292 C Low
503 Ammonium bituminosulfonate 9,025 291 Start Low
504 Crust (geology) 9,001 290 C High
505 Climate change mitigation 8,983 289 C Low
506 Tektite 8,979 289 Start Mid
507 Lower Rio Grande Valley 8,953 288 B Low
508 Aragonite 8,941 288 C Mid
509 Perovskite 8,887 286 C Low
510 Soil liquefaction 8,886 286 B Mid
511 Manicouagan Reservoir 8,884 286 Start Low
512 Meander 8,837 285 C Mid
513 Scree 8,832 284 Start Low
514 Cave diving 8,789 283 B Low
515 Cascade Volcanoes 8,785 283 C Mid
516 Kimberlite 8,748 282 Start Mid
517 Altar Stone (Stonehenge) 8,734 281 Stub Low
518 Devils Hole 8,720 281 B Low
519 Desiccation 8,691 280 C Low
520 Ediacaran biota 8,674 279 FA High
521 Holocene calendar 8,652 279 C Low
522 Andesite 8,650 279 B High
523 Stalagmite 8,623 278 Start Low
524 Iron Gates 8,611 277 C Low
525 Abyssal plain 8,604 277 GA Top
526 Concretion 8,593 277 B Low
527 Geologist 8,568 276 C Top
528 Cliff 8,512 274 Start Mid
529 Grand Banks of Newfoundland 8,462 272 Start Low
530 RNA world 8,453 272 C Low
531 Geoid 8,449 272 C Mid
532 Metamorphism 8,448 272 C High
533 Geomorphology 8,442 272 B High
534 Active volcano 8,384 270 Start Low
535 Primordial nuclide 8,382 270 Start Low
536 Gabbro 8,358 269 C High
537 Shungite 8,310 268 C Low
538 Edmond Halley 8,307 267 C Mid
539 Coltan 8,264 266 B Low
540 Bituminous coal 8,251 266 B Low
541 Al Naslaa 8,244 265 Stub Low
542 Fennoscandia 8,235 265 Stub Low
543 Stratospheric aerosol injection 8,218 265 C High
544 Asthenosphere 8,205 264 B High
545 Black Sea deluge hypothesis 8,205 264 Start Low
546 Gravel 8,163 263 Start Mid
547 Tombolo 8,155 263 Start Low
548 Land 8,135 262 B High
549 Impact crater 8,113 261 C Top
550 Cataclysmic pole shift hypothesis 8,098 261 Start Low
551 Mantle (geology) 8,095 261 B Top
552 Moon rock 8,084 260 C High
553 Cirque 8,076 260 C Low
554 Mount Seir 8,055 259 Start Low
555 Horseshoe Bend (Arizona) 8,045 259 C Low
556 Bluestone 8,038 259 Start Low
557 Pyroxene 8,027 258 C Mid
558 Blood Falls 8,003 258 C Mid
559 Continental crust 8,002 258 C Top
560 List of sinkholes 8,000 258 List Unknown
561 Chibanian 7,987 257 Start Mid
562 Hell Creek Formation 7,976 257 C Low
563 Jordan Valley 7,974 257 C Low
564 Earth mass 7,959 256 Start Low
565 Petroleum reservoir 7,951 256 B Mid
566 Indian Plate 7,919 255 C Mid
567 Timeline of glaciation 7,905 255 List Low
568 Storegga Slide 7,862 253 C Mid
569 South American Plate 7,859 253 Start Mid
570 Geothermal power 7,828 252 C Mid
571 Ravine 7,822 252 Start Low
572 Orcadian Basin 7,809 251 Start Mid
573 Laurentide ice sheet 7,787 251 C Mid
574 Eurasian Plate 7,767 250 Start Mid
575 Oil sands 7,766 250 C Mid
576 Kyanite 7,761 250 Start Mid
577 Salt marsh 7,737 249 B Low
578 Shatt al-Arab 7,709 248 C Low
579 River mouth 7,697 248 Start Low
580 Tar pit 7,692 248 C Mid
581 The Solent 7,688 248 C Low
582 Muscovite 7,666 247 C Low
583 Pounamu 7,664 247 C Low
584 Magnetic declination 7,655 246 C Low
585 Columbia (supercontinent) 7,651 246 Start Mid
586 Marl 7,649 246 C Low
587 Burgess Shale 7,647 246 Start High
588 Foraminifera 7,630 246 C Mid
589 Valley of Mexico 7,579 244 B Mid
590 Gravity anomaly 7,549 243 Start Mid
591 Hydrology 7,546 243 C Top
592 Hexagonal crystal family 7,535 243 C Low
593 Taiwan Strait 7,517 242 C Low
594 Rock cycle 7,469 240 C High
595 Azurite 7,392 238 C Low
596 Post-glacial rebound 7,389 238 B Mid
597 Safa and Marwa 7,365 237 Start High
598 Siberia (continent) 7,362 237 Stub Mid
599 Geotechnical engineering 7,330 236 C High
600 Refractory 7,316 236 B Low
601 Trolltunga 7,306 235 C Low
602 The Gap (Sydney) 7,295 235 B Low
603 Sudbury Basin 7,272 234 Start Mid
604 Tepui 7,254 234 Start Low
605 Diorite 7,243 233 C Mid
606 Valles Marineris 7,214 232 B Low
607 Salt pan (geology) 7,176 231 Start Top
608 Radiometric dating 7,167 231 B High
609 Uraninite 7,152 230 Start Mid
610 Niger Delta 7,145 230 Start Low
611 African Plate 7,085 228 C High
612 Ridge 7,070 228 Start Mid
613 Geological history of Earth 7,059 227 B Top
614 Climate change feedbacks 7,056 227 C Mid
615 Volcanic winter 7,052 227 Start Low
616 Quake (natural phenomenon) 7,045 227 Start Mid
617 Neoproterozoic 7,040 227 Start High
618 Volcanic rock 7,039 227 Start Mid
619 Glacial lake outburst flood 7,034 226 C Low
620 Nazca Plate 7,031 226 Start Mid
621 Kettle (landform) 7,011 226 Start Low
622 Plagioclase 6,999 225 Start High
623 Biogeochemical cycle 6,965 224 B Mid
624 Volcanic ash 6,950 224 GA Mid
625 Nunatak 6,919 223 Start Low
626 Po Valley 6,912 222 Start Unknown
627 Reef 6,904 222 Start Mid
628 Origin of the Moon 6,901 222 C High
629 Pegmatite 6,889 222 Start Low
630 Lustre (mineralogy) 6,860 221 Start Low
631 Loess 6,786 218 Start Low
632 Mud volcano 6,783 218 C Mid
633 Late Devonian extinction 6,753 217 C Mid
634 Hotspot (geology) 6,733 217 Start High
635 Vaalbara 6,679 215 C Mid
636 Tufa 6,676 215 Start Low
637 Rift valley 6,669 215 Start High
638 Great Unconformity 6,619 213 Start Mid
639 Spall 6,607 213 Start Low
640 Realgar 6,598 212 C Low
641 Humber 6,595 212 C Low
642 Oceanic crust 6,552 211 C High
643 Seismology 6,519 210 C High
644 Allan Hills 84001 6,472 208 B High
645 Ocean acidification 6,469 208 B Mid
646 Havilah 6,454 208 Stub Low
647 Seafloor spreading 6,450 208 C High
648 Crystallography 6,424 207 C High
649 List of historical earthquakes 6,407 206 List Mid
650 Speleology 6,396 206 Start Mid
651 Ball's Pyramid 6,396 206 Start Low
652 Chaotian (geology) 6,389 206 Start Mid
653 Oil shale 6,385 205 B High
654 Baltic amber 6,384 205 Start Low
655 Crystal system 6,383 205 C Mid
656 Hoba meteorite 6,358 205 Start Mid
657 Delaware Water Gap 6,337 204 C Low
658 List of deserts 6,302 203 List Low
659 Great American Interchange 6,298 203 C Low
660 North American Plate 6,293 203 Start High
661 Riebeckite 6,290 202 Start Mid
662 Pacific Plate 6,289 202 C High
663 Dike (geology) 6,268 202 Start Mid
664 Perovskite (structure) 6,263 202 C Low
665 Evolutionary history of plants 6,256 201 B High
666 Atlantic Seaboard Fall Line 6,244 201 Start Mid
667 Caspian Depression 6,219 200 Start Low
668 List of oil fields 6,214 200 List Low
669 Chrysotile 6,211 200 B Mid
670 Laramidia 6,211 200 Start Low
671 Kriging 6,209 200 C Mid
672 Popigai impact structure 6,190 199 Start Mid
673 Maastrichtian 6,173 199 Start Mid
674 Climate variability and change 6,172 199 C High
675 Glacial period 6,167 198 Start Mid
676 Radula 6,138 198 C Low
677 Opabinia 6,131 197 GA Low
678 Glen Coe 6,111 197 B Low
679 Chernobylite 6,108 197 Stub Low
680 Cuban underwater formation 6,095 196 Start Mid
681 Geothermal gradient 6,092 196 Start Mid
682 Uinta Basin 6,036 194 Start Low
683 Glacial erratic 6,019 194 C Mid
684 Scoria 6,011 193 Start Mid
685 Porosity 5,986 193 Start High
686 Amazonite 5,975 192 Start Low
687 Celestine (mineral) 5,966 192 Start Mid
688 Thunderegg 5,942 191 Start Low
689 Wisconsin glaciation 5,930 191 C Mid
690 List of gold nuggets by size 5,911 190 Start Mid
691 Paleoproterozoic 5,909 190 Start Mid
692 Peridotite 5,891 190 C High
693 Painite 5,867 189 Start Low
694 Chalcopyrite 5,854 188 C Mid
695 Clay mineral 5,848 188 Start Mid
696 Geosphere 5,826 187 Stub Mid
697 Panthalassa 5,819 187 Start High
698 Meghalayan 5,816 187 Start Low
699 Upper Mesopotamia 5,811 187 C Mid
700 Biogeography 5,796 186 Start Mid
701 Catacombs of Kom El Shoqafa 5,794 186 Start Low
702 Uranium ore 5,792 186 C Mid
703 Drumlin 5,790 186 C Low
704 Lava dome 5,784 186 Start Mid
705 Aeolian processes 5,776 186 C High
706 Sailing stones 5,773 186 C Low
707 Tor (rock formation) 5,766 186 Start Low
708 Appalachian Plateau 5,766 186 C Low
709 Meteor 5,735 185 Redirect NA
710 Cinder cone 5,725 184 Start Low
711 Col 5,714 184 Start Low
712 Glen 5,706 184 Stub Low
713 Drainage divide 5,701 183 Start Low
714 Pennsylvanian (geology) 5,692 183 Start High
715 The Palisades (Hudson River) 5,679 183 Start Mid
716 Couloir 5,678 183 Start Low
717 Mantle convection 5,660 182 C Mid
718 1992 Landers earthquake 5,659 182 Start Low
719 Paleocene–Eocene Thermal Maximum 5,658 182 B Mid
720 Sediment 5,636 181 Start High
721 Banded iron formation 5,617 181 GA Top
722 Azure Window 5,608 180 GA Mid
723 Large igneous province 5,605 180 Start High
724 Diabase 5,596 180 Start Mid
725 Sarsen 5,591 180 Start Low
726 Cordillera 5,589 180 Start Low
727 Imperial Valley 5,586 180 B Low
728 John Wesley Powell 5,578 179 B Low
729 Serpentine subgroup 5,573 179 Start Mid
730 List of rock formations 5,554 179 List Low
731 Geodetic datum 5,548 178 C Mid
732 Arctica 5,537 178 Start Mid
733 Ammolite 5,515 177 B Low
734 Smoky quartz 5,511 177 Start Low
735 Landmass 5,501 177 Stub Low
736 Monazite 5,476 176 Start Mid
737 Cryovolcano 5,475 176 GA Low
738 Tamu Massif 5,465 176 C Low
739 Supercontinent cycle 5,445 175 C High
740 Louis Agassiz 5,443 175 C High
741 Metallurgical coal 5,423 174 Stub Low
742 Geophysics 5,421 174 C Top
743 Meteoric iron 5,421 174 B Low
744 Geological Survey of India 5,400 174 C Low
745 Past sea level 5,397 174 C Top
746 Chondrite 5,395 174 C High
747 Flood basalt 5,393 173 Start High
748 Oil and gas reserves and resource quantification 5,390 173 B High
749 Caliche 5,387 173 Start Mid
750 Rift 5,373 173 Start High
751 Artificial reef 5,373 173 C Low
752 Puerto Rico Trench 5,368 173 B Mid
753 Esker 5,366 173 Start Low
754 Amphibole 5,360 172 Start Mid
755 Advection 5,343 172 C Low
756 Clarion-Clipperton Zone 5,342 172 Start Low
757 Kitch-iti-kipi 5,332 172 B Mid
758 Great Rift Valley, Kenya 5,326 171 C Mid
759 Gemology 5,320 171 Start Mid
760 Marine snow 5,315 171 C Low
761 Aftershock 5,314 171 B Mid
762 Mafic 5,313 171 C Low
763 Large low-shear-velocity provinces 5,313 171 Start Mid
764 Laccolith 5,301 171 Start Mid
765 Conglomerate (geology) 5,289 170 C High
766 Eoarchean 5,272 170 C Mid
767 Trona 5,265 169 Start Mid
768 Boesmansgat 5,262 169 Stub Low
769 Late Jurassic 5,252 169 Start Mid
770 Shanxi Rift System 5,251 169 Start Mid
771 Bakken formation 5,244 169 C Mid
772 Sahul 5,240 169 Stub Mid
773 Earth ellipsoid 5,238 168 Start Mid
774 Boring Billion 5,228 168 GA Low
775 Philippine Sea Plate 5,224 168 Start Mid
776 Cumberland Plateau 5,220 168 Start Low
777 Slot canyon 5,210 168 Start Low
778 Yosemite Valley 5,195 167 Start Mid
779 Chrysoprase 5,194 167 Start Low
780 Ilmenite 5,192 167 B Low
781 Chromite 5,149 166 B Mid
782 Quasicrystal 5,146 166 B Low
783 Cairngorms 5,137 165 B Mid
784 Soil science 5,135 165 C High
785 Orthoclase 5,125 165 Start Mid
786 Juan de Fuca Plate 5,119 165 Start Mid
787 South Downs 5,090 164 Start Mid
788 Desert of Paran 5,083 163 C Low
789 Lobopodia 5,067 163 C Low
790 Palo Duro Canyon 5,064 163 B Low
791 Kjeragbolten 5,046 162 C High
792 Khaybar 5,040 162 Start Low
793 Puddingstone (rock) 5,031 162 Start Low
794 Baetyl 5,027 162 C Low
795 Early Cretaceous 5,025 162 C Low
796 Deep time 5,005 161 C Mid
797 Epoch (geology) 5,001 161 Redirect NA
798 Kathmandu Valley 4,998 161 C Unknown
799 Breccia 4,989 160 B High
800 Wanggongchang Explosion 4,977 160 C Low
801 Vargas tragedy 4,949 159 B Low
802 Craco 4,945 159 Start Low
803 Sharpening stone 4,940 159 C Low
804 Iron meteorite 4,930 159 C Low
805 Rift lake 4,927 158 Stub Low
806 Methane clathrate 4,920 158 C Mid
807 Intrusive rock 4,911 158 Start Mid
808 Thrust fault 4,910 158 C Low
809 Los Angeles Basin 4,909 158 C Mid
810 Orthorhombic crystal system 4,902 158 Start Low
811 Cassiterite 4,896 157 Start Mid
812 Soil formation 4,893 157 Start Low
813 Adaptive radiation 4,889 157 Start Mid
814 Pebble 4,886 157 Start Low
815 Contamination 4,880 157 C Low
816 Morrison Formation 4,872 157 B Low
817 Last Interglacial 4,867 157 Start High
818 Volcanic plug 4,861 156 Start Mid
819 Igneous intrusion 4,855 156 Start Mid
820 Waste Isolation Pilot Plant 4,853 156 C Low
821 Mogollon Rim 4,851 156 C Low
822 Biotite 4,817 155 C Mid
823 Tonian 4,810 155 Stub Low
824 Tectonics 4,806 155 Start High
825 Cleavage (crystal) 4,804 154 Start High
826 Volcanic glass 4,798 154 Start Low
827 Graben 4,798 154 Start High
828 Mass wasting 4,771 153 Start Low
829 Huronian glaciation 4,747 153 Start Mid
830 Oldest dated rocks 4,743 153 C Low
831 Rayleigh wave 4,737 152 C Mid
832 Stack (geology) 4,731 152 Start Low
833 Psyche (spacecraft) 4,718 152 B Low
834 Greenhouse and icehouse Earth 4,710 151 C High
835 Neoarchean 4,704 151 Start Low
836 Mountain formation 4,692 151 Start Low
837 Jadarite 4,691 151 C Low
838 Volcanism 4,690 151 C High
839 Widmanstätten pattern 4,685 151 Start Mid
840 Monoclinic crystal system 4,662 150 Start Low
841 K-index 4,659 150 Start Unknown
842 Cryolite 4,651 150 Start Low
843 Spatial analysis 4,644 149 C Low
844 Sewelô 4,637 149 Stub Low
845 Hoggar Mountains 4,635 149 Start Low
846 William Buckland 4,634 149 C Mid
847 Chrysocolla 4,633 149 Start Mid
848 Trango Towers 4,625 149 C Unknown
849 Religious views of Charles Darwin 4,622 149 B Low
850 Yarrabubba impact structure 4,620 149 Start Low
851 Bass Rock 4,614 148 B Low
852 Uniformitarianism 4,613 148 B High
853 Taconite 4,610 148 Start Mid
854 Great Appalachian Valley 4,609 148 C Unknown
855 Magma chamber 4,603 148 Start Low
856 Discharge (hydrology) 4,599 148 C Mid
857 List of planet types 4,599 148 List Low
858 Montmorillonite 4,585 147 C Low
859 Lava tube 4,582 147 Start Low
860 Miyake event 4,577 147 Start High
861 Till 4,575 147 Start Mid
862 Stratum 4,574 147 Start Mid
863 Loess Plateau 4,562 147 C Low
864 Phreatic eruption 4,541 146 Start Mid
865 Drainage system (geomorphology) 4,533 146 Start Low
866 Acasta Gneiss 4,525 145 Start High
867 Pele's hair 4,517 145 Stub Low
868 Black sand 4,514 145 List Low
869 Pannotia 4,514 145 Start High
870 Mary Somerville 4,500 145 B Low
871 Alvarez hypothesis 4,495 145 Start Low
872 Boulder 4,483 144 Start Low
873 Syenite 4,474 144 Start High
874 Geology of the Rocky Mountains 4,461 143 C Mid
875 Geological formation 4,443 143 Start High
876 Kerguelen Plateau 4,436 143 C Mid
877 Geology of the Moon 4,426 142 B High
878 Philippine Trench 4,407 142 Stub Low
879 Permeability (materials science) 4,403 142 Start High
880 Lonsdaleite 4,399 141 C Low
881 Carnian pluvial episode 4,396 141 C Low
882 Alpide belt 4,394 141 Start Low
883 Alluvial fan 4,390 141 GA High
884 Kangshung Face 4,380 141 Start Mid
885 Bog iron 4,377 141 B Low
886 Causes of climate change 4,374 141 B Low
887 Early Earth 4,373 141 Start Mid
888 Red beryl 4,368 140 Start Low
889 Batholith 4,355 140 Start Mid
890 Stratigraphy 4,332 139 C High
891 Zuma Rock 4,323 139 Start Low
892 Paleoclimatology 4,307 138 C High
893 Ultramafic rock 4,301 138 Start High
894 Eocene–Oligocene extinction event 4,295 138 Start Low
895 Limonite 4,284 138 C Mid
896 Goethite 4,281 138 C Low
897 Clastic rock 4,281 138 Start Mid
898 Lazurite 4,276 137 C Mid
899 Speleothem 4,274 137 C Mid
900 Ur (continent) 4,272 137 Start Mid
901 James Hutton 4,270 137 B Top
902 Earth's internal heat budget 4,262 137 C Mid
903 Fracking in the United States 4,251 137 C Low
904 Lupercal 4,250 137 Start High
905 Laramide orogeny 4,249 137 C Mid
906 Grain size 4,246 136 Start Low
907 Jökulhlaup 4,242 136 C Low
908 Yellowstone hotspot 4,240 136 C Mid
909 Caledonian orogeny 4,222 136 Start Low
910 Mud 4,215 135 Start Low
911 Volcanism of Iceland 4,209 135 Start High
912 Denudation 4,189 135 C Mid
913 Paleoarchean 4,187 135 C Mid
914 Marikina Valley Fault System 4,185 135 Start Low
915 East European Plain 4,176 134 Start High
916 Phosphorite 4,171 134 C Mid
917 Borra Caves 4,165 134 Start Low
918 Surface water 4,164 134 Start Mid
919 Greywacke 4,163 134 Start High
920 Sacramento–San Joaquin River Delta 4,154 134 B Low
921 Project Mohole 4,153 133 B High
922 Climate change in India 4,153 133 B High
923 Felsic 4,143 133 Start Low
924 2024 Ankola (Karnataka) landslide 4,140 133 Start Unknown
925 Hornblende 4,136 133 Start Mid
926 Geology of the Appalachians 4,120 132 C Mid
927 Introduction to evolution 4,119 132 B Top
928 1908 Messina earthquake 4,100 132 C Mid
929 Manning formula 4,099 132 Start Low
930 Lucy Jones 4,095 132 C Low
931 Maria Bianca Cita 4,095 132 Start Low
932 Long Valley Caldera 4,094 132 B Mid
933 Expanding Earth 4,084 131 B Low
934 Atchafalaya Basin 4,081 131 Start High
935 Portland stone 4,078 131 C Mid
936 Calypso Deep 4,063 131 Stub Low
937 Native metal 4,054 130 C Mid
938 Retreat of glaciers since 1850 4,052 130 B Mid
939 Mineralogy 4,051 130 C Top
940 Telluric current 4,028 129 C Mid
941 Lagerstätte 4,027 129 B Top
942 Wolfe Creek Crater 4,026 129 Start Mid
943 Lepidolite 4,017 129 Start Mid
944 Narragansett Bay 4,014 129 B Low
945 2014 Oso landslide 4,014 129 C Mid
946 Groundwater recharge 4,011 129 C Mid
947 Tonga Trench 4,007 129 C Mid
948 Mantle plume 3,999 129 B High
949 Transitional fossil 3,997 128 GA High
950 Paratethys 3,994 128 C Low
951 Mesoproterozoic 3,989 128 Start Mid
952 Shield (geology) 3,986 128 Start High
953 Fraser Valley 3,985 128 B Mid
954 Wolframite 3,983 128 Start Mid
955 Well drilling 3,981 128 C Low
956 1970 Huascarán debris avalanche 3,980 128 C Unknown
957 Crown group 3,975 128 C Low
958 Red River Gorge 3,968 128 C Unknown
959 Mudflow 3,962 127 C Mid
960 Neandertal (valley) 3,959 127 Start Low
961 Great Artesian Basin 3,957 127 C Mid
962 Volcanic island 3,950 127 Start Mid
963 Kitum Cave 3,950 127 Start Low
964 Great Hungarian Plain 3,930 126 Start High
965 Hydrothermal circulation 3,926 126 Start Mid
966 Marcasite 3,923 126 Start High
967 Interglacial 3,921 126 Start Mid
968 Pyroclastic rock 3,918 126 Start Mid
969 Afar Triangle 3,917 126 B High
970 Salt dome 3,914 126 Start Mid
971 List of possible impact structures on Earth 3,912 126 List High
972 Shale gas 3,906 126 C Mid
973 Eon (geology) 3,899 125 Redirect NA
974 Mir mine 3,879 125 Start Mid
975 Bayou Corne sinkhole 3,863 124 C Low
976 Indo-Australian Plate 3,860 124 Start High
977 Tertiary 3,839 123 Start Unknown
978 Charles Lyell 3,837 123 B Top
979 Sunstone (medieval) 3,835 123 B Low
980 Anorthosite 3,832 123 Start Mid
981 Carbonaceous chondrite 3,827 123 C Mid
982 Diamond anvil cell 3,810 122 B Low
983 Foreshock 3,807 122 Start Mid
984 Depression (geology) 3,799 122 Start Mid
985 European Plain 3,792 122 Start Unknown
986 Artesian aquifer 3,791 122 Redirect Mid
987 Flood geology 3,789 122 B High
988 Geodetic coordinates 3,788 122 Start Unknown
989 Silfra 3,773 121 Start Low
990 Planetary science 3,770 121 C High
991 Barnenez 3,768 121 Start Mid
992 Marine isotope stages 3,767 121 C Low
993 Penang Hill 3,766 121 Start Unknown
994 Cryosphere 3,761 121 C Mid
995 Martian meteorite 3,751 121 B Mid
996 Tsunamis affecting the British Isles 3,745 120 C Low
997 Sulaiman Mountains 3,736 120 Start Mid
998 Clair Cameron Patterson 3,732 120 C Low
999 List of extinction events 3,729 120 List Mid
1000 Planetary differentiation 3,720 120 Start Mid