Volume 75, Issue 23. Download Citation | The Age of Tenoumer Crater, Mauritania, Revisited | The weighted mean apatite fission track age for Tenoumer converge to 21.4±9.7 Ka. TENOUMER CRATER, MAURITANIA: AGE AND PETROLOGIC EVIDENCE FOR ORIGIN BY METEORITE IMPACT (Pamphlet) [French, Bevan M., et al] on Amazon.com. Possible impact crater with well visible circular crater rims. 2 likes. The Ouarkziz Impact Crater is located in northwestern Algeria, close to the border with Morocco. Remove maintenance message. The crater is located in the western Sahara Desert.It is 1.9 km (1.2 mi) in diameter and the age is estimated to be 21,400 ± 9,700 years old, placing it in the Pleistocene epoch.. 10 August 1970.
Open navigation Open search. In the crater area, target rocks and impact melt breccias were recognized in … Journal list menu . Its age is still unknown, but the present erosional level suggests a relatively old age of formation. The crater was first described by [3] and interpreted as the result of an explosion of post fihamadafl age. Tenoumer crater, Mauritania: Age and petrologic evidence for origin by meteorite impact. Caption. Examination of Tenoumer and Aouelloul craters showed that they formed at different times and therefore could not have resulted from the same impact event.
Tenoumer crater. The age of Tenoumer crater, Mauritania, revisited (abstract #1183). The crater was formed by a meteor impact less than 70 million years ago, during the late Cretaceous Period of the Mesozoic Era, or “Age of Dinosaurs.”. Tenoumer crater – Tiris Zemmour. Related; Information; Close Figure Viewer. Tenoumer crater, Mauritania: Age and petrologic evidence for origin by meteorite impact. Crater Name Location Latitude Longitude Diameter (km) Age (Ma) Exposed Drilled Targed Rock** Bolid Type*** Tenoumer: Mauritania: N 22° 55' W 10° 24' 1.9: 0.0214 ± 0.0097: Y: N: M - Although it resides in ancient rock, Tenoumer is geologically young, ranging in age between roughly 10,000 and 30,000 years old. Its diameter is about 700 m. According to Pomerol (1967), mafic rocks have been found in the area.
The Ouarkziz Impact Crater is located in northwestern Algeria, close to the border with Morocco. The crater was formed by a meteor impact less than 70 million years ago, during the late Cretaceous Period of the Mesozoic Era, or “Age of Dinosaurs.”. ... We calculated a weighted mean age of 1.57 ± 0.14 Ma for these new results. TENOUMER CRATER, MAURITANIA: AGE AND PETROLOGIC EVIDENCE FOR ORIGIN BY METEORITE IMPACT (Pamphlet) Impact melt rocks from the 1.9 km diameter, simple bowl‐shaped Tenoumer impact crater in Mauritania have been analyzed chemically and petrologically. Due to the rare occurrence of fused igneous materials outside the crater, fibasaltfl [1,3], firhyodacitefl [4], a volcanic origin was favored. Details. 1.9km wide and with a 100m high rim, the best estimates for the age of Tenoumer Crater place it between 10,000–30,000 years old. Pages 4396-4406. *FREE* shipping on qualifying offers.