干旱区生态环境知识资源中心(Arid): Gravity aspects from recent Earth gravity model EIGEN 6C4 for geoscience and archaeology in Sahara, Egypt

Arid

DOI	10.1016/j.jafrearsci.2020.103867
	Gravity aspects from recent Earth gravity model EIGEN 6C4 for geoscience and archaeology in Sahara, Egypt
	Klokocnik, Jaroslav; Cilek, Vaclav; Kostelecky, Jan; Bezdek, Ales
通讯作者	Bezdek, A
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2020
卷号	168
英文摘要	A new method to detect paleolakes via their gravity signal is presented (here with implications for geoscience and archaeology). The gravity aspects or descriptors (gravity anomalies/disturbances, second radial derivatives, strike angles and virtual deformations) were applied. They were computed from the gravity field model EIGEN 6C4 (European Improved Gravity model of the Earth by New techniques). The model consists of the best now available satellite and terrestrial data, including gradiometry from the GOCE (Gravity field and steady-state Ocean Circulation Explorer) satellite mission. EIGEN 6C4 has the ground resolution similar to 10 km. From archaeological sources, the positions of archaeological sites of the Holocene occupations between 8500 and 5300 BCE (8.5-5.3 ky BC) in the Eastern Sahara, Western Desert, Egypt were taken. They were correlated with the features found from the gravity data; the correlation is good, assuming that the sites were mostly at paleolake borders or at rivers. Based on this finding, we suggest position, extent and shape of paleolake(s). We also reconsider the origin of Libyan Desert glass in the Great Sand Sea and support hypothesis about an older impact structure created there, repeatedly filled by water, which might be a part of some of the possible paleolake(s).
英文关键词	Eastern Sahara/Great sand sea Paleolakes Holocene occupations EIGEN 6C4 gravity Model Gravity aspects Impact crater Libyan desert glass
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000540173100014
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324739
作者单位	[Klokocnik, Jaroslav; Bezdek, Ales] Czech Acad Sci, Astron Inst, Fricova 298, CZ-25165 Ondrejov, Czech Republic; [Cilek, Vaclav] Czech Acad Sci, Geol Inst, Rozvojova 269, CZ-16500 Prague, Czech Republic; [Kostelecky, Jan] Res Inst Geodesy Topog & Cartog, Zdiby 98, CZ-25066 Zdiby, Czech Republic; [Kostelecky, Jan] VSB TU Ostrava, Fac Min & Geol, CZ-70833 Ostrava, Czech Republic; [Bezdek, Ales] Czech Tech Univ, Fac Civil Engn, CZ-16629 Prague 6, Czech Republic
推荐引用方式 GB/T 7714	Klokocnik, Jaroslav,Cilek, Vaclav,Kostelecky, Jan,et al. Gravity aspects from recent Earth gravity model EIGEN 6C4 for geoscience and archaeology in Sahara, Egypt[J],2020,168.
APA	Klokocnik, Jaroslav,Cilek, Vaclav,Kostelecky, Jan,&Bezdek, Ales.(2020).Gravity aspects from recent Earth gravity model EIGEN 6C4 for geoscience and archaeology in Sahara, Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,168.
MLA	Klokocnik, Jaroslav,et al."Gravity aspects from recent Earth gravity model EIGEN 6C4 for geoscience and archaeology in Sahara, Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 168(2020).