Results 31 to 40 of about 168,661 (369)
Sedimentation of the Lower Cretaceous Xiagou formation and Its Response to Regional Tectonics in the Qingxi Sag, Jiuquan Basin, NW China [PDF]
, 2014 Under the constraint of an isochronous sequence stratigraphic framework, sediment infill of the Xiagou Formation reflects the overall control of dynamic tectonic movements and episodic sedimentations in the Qingxi Sag.
Chen, Si +5 more
core +1 more source
Microfacies, Sedimentary Environment, Diagenesis and Petrophysical Evaluation of the Sarvak Formation in the framework of Sequence Stratigraphy in North-Dezful Embayment, southwestern Iran [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2023 The subsurface section of the Sarvak Formation with a thickness of 455 m is located in the North-Dezful Embayment. The Sarvak Formation is underlain by the Ilam Formation with erosional discontinuity and is overlain probably by the Shale of the Kazhdumi ...
Zhila Rahmani +3 more
doaj +1 more source
LITHOFACIES AND DEPOSITIONAL ENVIRONMENT OF VOLCANO-SEDIMENTARY DEPOSITS OF SE MAYO OULO BASIN [PDF]
American Journal of Geoscience, 2013 The study of volcano-sedimentary deposits of Mangbai in SE Mayo Oulo basin-Cameroon leads to the identification of five major distinct lithofacies t ypes. From the coarset to the finest lithofacies, t here are: Gb-clast supported by massive coble and boulder, Gg-granule to massive gravel, Sm-massive sand, Shhorizontal layered sandstones, Fml-massive ...
Menkem, E.F. +3 more
openaire +5 more sources
Tellurium, selenium and cobalt enrichment in Neoproterozoic black shales, Gwna Group, UK : Deep marine trace element enrichment during the Second Great Oxygenation Event [PDF]
, 2018 We are grateful to John Still for his skilled technical support and the ACEMAC facility at the University of Aberdeen. Research funded by NERC grant NE/M010953/1 and NERC facility grant IP-1631-0516. AJB is funded by NERC support of the Isotope Community
Armstrong, Joseph +5 more
core +2 more sources
Depositional environment of shale in Wufeng and Longmaxi Formations, Sichuan Basin
Petroleum Research, 2017 Formation of organic-rich shale was controlled by depositional processes and environment condition. According to petrology, mineralogy, fossil composition and sedimentary structure, seven lithofacies of shale were identified in the Wufeng Formation to ...
Jianhua Zhao +6 more
doaj +1 more source
Chemical Geology, 2023 Sedimentary molybdenum (Mo) and uranium (U) enrichments are widely used to reconstruct changes in bottom water oxygen conditions in aquatic environments. Until now, most studies using Mo and U have focused on restricted suboxic-euxinic basins and continental margin oxygen minimum zones (OMZs), leaving mildly reducing and oxic (but eutrophic) coastal ...
Paul, K. Mareike +6 more
openaire +4 more sources
Petroleum Research, 2017 According to data of gas wells and typical sections of Wufeng Formation and Longmaxi Formation in Sichuan Basin, shale of various graptolite zones were analyzed to determine depositional environment, lithology and thickness characteristics of the ...
Haikuan Nie +5 more
doaj +1 more source
Open Geosciences, 2021 The black rock series in the Qiongzhusi Formation contains important geochemical information about the early Cambrian tectonic and ecological environment of the southwestern Yangtze Block.
Liu Hao +8 more
doaj +1 more source
Data in Brief, 2023 This sedimentary logging and facies characterized dataset of 28 outcrops exposed along Kuala Tahan – Kampung Pagi – Kampung Bantal which is situated in the central part of Peninsular Malaysia (in the state of Pahang).
Wei Chung Khor +3 more
doaj +1 more source
ACS Omega, 2023 To explore the sedimentary environment and the background of the source area of organic-rich shales in the Wufeng–Longmaxi Formations in the northern Sichuan Basin, samples from Well XX1 in the area were subjected to geochemical testing and analysis of ...
Bin Xiao +7 more
semanticscholar +1 more source