Ash Shumaysi Formation

Shumaysi Formation is an area of geologic features in Saudi Arabia.[1][2][3][4] Pollen and fungal spores among the deposits have been studied.[5] According to the caption of a photo by Iyad S. Zalmout of the University of Michigan Museum of Paleontology, "Red sandstones and siltstones of the Shumaysi Formation are truncated by channels of quartz pebble conglomerate and occasionally bands of ironstone."

Saudi Geological Survey geologist Mohammad Ali examines the Shumaysi Formation near the Saadanius hijazensis fossil locality. Photograph by Iyad S. Zalmout, University of Michigan Museum of Paleontology

Ash Shumaysi is a village in western Saudi Arabia. The formation includes yellow mudstones and volcaniclastic red beds.[6]

Oligocene Anthracotheriidae have been studied from the site.[7]

References

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  1. ^ Abdulfarraj, Murad R.; Alqahtani, Faisal A.; Wanas, Hamdalla A. (February 1, 2024). "Petrography and geochemistry of sandstones of the Ash Shumaysi Formation in the Jeddah-Makkah region, Saudi Arabia: Implications for provenance, tectonic setting, paleoweathering, paleoclimate and paleogeography". Sedimentary Geology. 460: 106549. Bibcode:2024SedG..46006549A. doi:10.1016/j.sedgeo.2023.106549.
  2. ^ Taj, Rushdi J.; Mesaed, Ali A. (July 1, 2012). "Facies Analysis and Depositional Environments of Ash Shumaysi Formation (Oligocene–Miocene), Makkah Quadrangle, Wadi Ash Shumaysi, West Central Arabian Shield, Saudi Arabia". Arabian Journal for Science and Engineering. 37 (5): 1459–1482. doi:10.1007/s13369-012-0256-8 – via Springer Link.
  3. ^ Ouf, M. A. Abou; Gheith, A. M. (May 16, 1998). Purser, Bruce H.; Bosence, Dan W. J. (eds.). Sedimentation and Tectonics in Rift Basins Red Sea:- Gulf of Aden. Springer Netherlands. pp. 135–145. doi:10.1007/978-94-011-4930-3_9 – via Springer Link.
  4. ^ Alqahtani, Faisal A.; Abdulfarraj, Murad R.; Wanas, Hamdalla A. (November 16, 2023). "Depositional architecture and sequence stratigraphic framework of the fluvio-lacustrine Ash Shumaysi Formation, Jeddah-Makkah Region, Saudi Arabia: Implications for climatic and tectonic changes in a local-scale sub-basin". The Depositional Record. 9 (4): 1066–1094. Bibcode:2023DepRe...9.1066A. doi:10.1002/dep2.248.
  5. ^ Srivastava, Satish K.; Binda, Pier L. (1991). "Depositional History of the Early Eocene Shumaysi Formation, Saudi Arabia". Palynology. 15 (1): 47–61. Bibcode:1991Paly...15...47S. doi:10.1080/01916122.1991.9989389. JSTOR 3687389 – via JSTOR.
  6. ^ "(a) Yellow mudstones of Ash Shumaysi Formation; (b) Volcaniclastic red... | Download Scientific Diagram".
  7. ^ "Oligocene Anthracotheriidae (Artiodactyla) from the Usfan and Shumaysi formations, western Saudi Arabia".