Results 21 to 30 of about 8,044,550 (301)

Organic matter provenance and depositional environment of marine-to-continental mudstones and coals in eastern Ordos Basin, China—Evidence from molecular geochemistry and petrology

, 2020
Cyclothems, composed of interbedded mudstone, coal and sandstone layers, make up the Taiyuan and Shanxi Formations in the Late Carboniferous to Early Permian in North China under a marine-to-continental depositional environment.
Yu Qi, Y. Ju, Jingqiang Tan, L. Bowen, C. Cai, Kun Yu, Hongjian Zhu, Cheng Huang, Weilai Zhang   +8 more
semanticscholar   +1 more source

Dispositional characteristics of Ordovician Wufeng Formation and Silurian Longmaxi Formation in Sichuan Basin and its adjacent areas

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, Zhijun Jin, Xin Ma, Zhongbao Liu, Tuo Lin, Zhenheng Yang   +5 more
doaj   +1 more source

Facies Architecture Analysis for Paleo-environment Evaluation in “Tom” Oil Field, Eastern Niger Delta, Nigeria

Journal of Applied Sciences and Environmental Management, 2020
The cored section of reservoir C, well 4 of the drilled five wells that penetrated three reservoirs A, B and C in “TOM” oil field, Eastern Niger Delta was analysed and described on the basis of lithofacies, sedimentary structures and trace fossil ...
T.M. Asubiojo
doaj   +1 more source

Interpretation and Reconstruction of Depositional Environment and Petroleum Source Rock Using Outcrop Gamma-ray Log Spectrometry From the Huai Hin Lat Formation, Thailand

Frontiers in Earth Science, 2021
Gamma ray logs are most useful in identifying subsurface lithology and interpreting depositional environments. This study highlights the use of outcrop gamma-ray logs along with outcrop observations and total organic carbon (TOC) analysis to provide the ...
Chawisa Phujareanchaiwon, Piyaphong Chenrai, Piyaphong Chenrai, Kasira Laitrakull   +3 more
doaj   +1 more source

The First Discovery of a Large Sandstone‐type Uranium Deposit in Aeolian Depositional Environment

Acta Geologica Sinica - English Edition, 2020
deposits worldwide is mostly less than 700 m, and most of them occur in strata of fluvial facies (Adams et al., 1981; Jin et al., 2016; Hou et al., 2017). Only a few small uranium deposits have been reported in aeolian depositional environments (Isachsen
Pei-sen Miao, Ruoshi Jin, Jianguo Li, Hualei Zhao, Lulu Chen, Yin Chen, Qinghong Si   +6 more
semanticscholar   +1 more source

MICROFACIES ANALYSIS OF LATE JURASSIC SAMANA SUK FORMATION, HAZARA BASIN LESSER HIMALAYA NORTH PAKISTAN [PDF]

Earth Science Malaysia, 2020
The detailed petrological investigation of Samana Suk Formation from Hazara Basin, Pakistan was carried out to elaborate its microfacies. The Samana Suk Formation is mostly composed of fine to coarse-grained, limestone with dolomite in parts developed as
Yasin Rahim, Qiugen Li, Umar Farooq Jadoon, Wasiq Lutfi, Junaid Khan, Shamim Akhtar   +5 more
doaj   +1 more source

Lithofacies And Depositional Analysis Environment Of West Section Kolok Nan Tuo Village, Sawahlunto City, West Of Sumatera

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2018
Research areas were located in the west of Kolok Nan Tuo Village. Geographically this area is located at coordinates 00 ° 36'57,85 '' - 00 ° 37'56,89 '' latitude and 100 ° 42'10,08 '' 100 ° 43'47,28 " BT.
Catur Cahyaningsih, Anjas Latif Ritonga, Shaury Aldila, Zulhikmah Zulhikmah   +3 more
doaj   +1 more source

Defining depositional environment by using neural network

Geologia Croatica, 2011
Traditional techniques to identify a depositional body from core data are costly and sometimes difficult to extrapolate to uncored wells. The application of Kohonen’s Self Organized Map (SOM) approach may be useful for the interpretation of a ...
Janina Horvath
doaj   +1 more source

ORGANIC GEOCHEMISTRY, DEPOSITIONAL ENVIRONMENT AND HYDROCARBON POTENTIAL OF THE TERTIARY OIL SHALE DEPOSITS IN NW ANATOLIA, TURKEY; pp. 444–464 [PDF]

Oil Shale, 2008
In this study, organic geochemical characteristics and depositional environ­ment of the Tertiary-aged oil shale deposits in Northwest Anatolia have been examined. Oil shales in all the studied areas are typically characterized by high hydrogen index and
R. KARA GÜLBAY, S. KORKMAZ
doaj   +1 more source

Sedimentology and sequence stratigraphy of the mixed clastic-carbonate deposits in the Late Paleozoic icehouse period: A case study from the northern Qaidam Basin

China Geology, 2021
The widely-developed, mixed clastic-carbonate succession in the northern Qaidam Basin records the paleo-environment changes under the glacial activity during the Late Paleozoic icehouse period in the context of regional tectonic stability, however, the ...
Xiao-jie Wei, Zong-xing Li, Yin-sheng Ma, Yi-fan Li, Jun-jie Hu, Kui Liu, Xin-xin Fang   +6 more
doaj   +1 more source