Results 191 to 200 of about 5,193 (249)

Integrated evaluation of groundwater irrigation suitability using hydrochemical indices and irrigation water quality index (IWQI) in Aksum, Tigray, Ethiopia. [PDF]

Sci Rep
Ataklti B, Tesema FW, Berhe BA.
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Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton. [PDF]

PLoS One
Chang YG, Qing SY, Dai MY, Chen SH.
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Investigating impact of slash and clear vector control strategy on blackfly population and onchocerciasis transmission in a hotspot in Nigeria. [PDF]

PLoS Negl Trop Dis
Adeleke M, Surakat O, Nwoke B, Opara K, Mafuyai H, Iwalewa Z, Dauda OG, Adeshina Q, Awoniyi I, Nwoke M, Chikezie F, Yaro C, Olamiju F, Emukah E, Makata C, Omitola O, Babalola A, Jacob B.   +17 more
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Forecasting groundwater level changes using machine learning techniques in Tazerbo area, Al Kufra Basin, southeast Libya. [PDF]

Sci Rep
El Fallah OA, Abou El-Magd LM, El Kammar MM, Abu Salem HS.   +3 more
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Provenance and tectonic settings of late Triassic-Jurassic deposits in the Southwestern Yangtze block: evidence from the geochemistry, SW China. [PDF]

Sci Rep
Yao S, Wang Q, Mou C, Ren P, Zan B, Xie S, Liu J, Liu X.   +7 more
europepmc   +1 more source

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The Lower Precambrian in the Structure of Paleozoids of the Subpolar Urals

Doklady Earth Sciences, 2019
Rocks of Early Precambrian age have been established in many polymetamorphic complexes of the Urals. However, there is no doubt that only two polymetamorphic complexes (Taratash and Aleksandrovsk), located on the western slope of the Urals, belong to the Archean–Paleoproterozoic sequence.
Yu. I. Pystina, A. M. Pystin, V. B. Hubanov   +2 more
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Geotectonic evolution of the Siberian platform during the Precambrian and comparison with the lower Precambrian complexes of eastern Asia

Journal of Southeast Asian Earth Sciences, 1990
Abstract The main stages of the geotectonic evolution during the Precambrian of the Siberian platform are older than those in the other blocks of eastern Asia. Upper Proterozoic orogenic stages took place in north China-Korean blocks near the collision boundary with the south China block. Such Upper Proterozoic stages are characteristic for the south
N.L. Dobretsov, V.L. Dook, V.I. Kitsul
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The discovery of retene in Precambrian and Lower Paleozoic marine formations

Chinese Journal of Geochemistry, 1995
Microscopic and SEM observations of thin sections and kerogens and GC-MS analyses of aromatic fractions in sediment extracts and pyrolysis products of kerogens provide strong evidence suggesting that in the Lower Yangtze Valley area the Sinian and Lower Paleozoic carbonate formations of marine facies received no higher plant input, but there was ...
Jiang Naihuang, Tong Zhenyan, Ren Dongling, Song Fuqing, Yang Dongsheng, Zhu Changding, Gao Yijun   +6 more
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Geology of lower Precambrian in Shilka-Olekma interstream area

International Geology Review, 1967
The area, an alternation of large synclinoria and anticlinoria, proves to be a direct southwest extension of the early Proterozoic Stanovoy folded zone, a differentiated geosynelinal downwarp with a radical structural unconformity to its deeply metamorphosed Archean base. — IGR Staff.
V.I. Shul'diner, A.F. Ozerskiy
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Upper Precambrian–Lower Cambrian biota from the northwest of Argentina

Geological Magazine, 1986
AbstractThe principal characters of the biota from Upper Precambrian–Lower Cambrian rocks in the northwest of Argentina are described. It is possible to observe two groups: the trace fossils and the medusoid impressions. At the same time, a regional palaeogeographical analysis is attempted as well as a comparison with outcrops of similar age from the ...
Florencio Gilberto Aceñolaza, Felipe Ramón Durand   +1 more
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