A 200 km suspected impact crater Kotuykanskaya near Popigai, Siberia, in the light of new gravity aspects from EIGEN 6C4, and other data

0534173 - ASÚ 2021 RIV GB eng J - Journal Article
Klokočník, Jaroslav - Kostelecký, J. - Bezděk, Aleš - Kletetschka, G. - Staňková, H.
A 200 km suspected impact crater Kotuykanskaya near Popigai, Siberia, in the light of new gravity aspects from EIGEN 6C4, and other data.
Scientific Reports. Roč. 10, č. 1 (2020), č. článku 6093. ISSN 2045-2322. E-ISSN 2045-2322
R&D Projects: GA MŠMT(CZ) LTT18011
Institutional support: RVO:67985815
Keywords : magnetic-anomalies * hematite * field
OECD category: Physical geography
Impact factor: 4.380, year: 2020
Method of publishing: Open access

We provide arguments in favour of impact origin of a 200 km suspected impact crater Kotuykanskaya near Popigai, Siberia, Russia. We use the gravity aspects (gravity disturbances, the Marussi tensor of the second derivatives of the disturbing geopotential, the gravity invariants and their specific ratio, the strike angles and the virtual deformations), all derived from the combined static gravity field model EIGEN 6C4, with the ground resolution of about 10 km and a precision of about 10 milliGals. We also use the magnetic anomalies from the model EMAG2 and emphasize the evidence of much deeper sources in the suspected area, constraining the impact origin of this structure.

Permanent Link: http://hdl.handle.net/11104/0312406