Results 31 to 40 of about 96,388 (335)

A new model for the formation of microbial polygons in a coastal sabkha setting [PDF]

open access: yes, 2017
The stratigraphic record of microbially induced sedimentary structures spans most of the depositional record. Today, microbes continue to generate, bind and modify sediments in a vast range of depositional environments.
Andrade, Luiza   +7 more
core   +2 more sources

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

open access: yesPetroleum 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

Predicting the depositional environments and transportation mechanisms of sediments using granulometric parameters, bivariate and multivariate analyses [PDF]

open access: yes, 2019
Grain size distribution and classes present in sedimentary rocks are responsive to the physical changes of the transporting media and the basin of deposition.
Ikhane, Phillips R.   +2 more
core   +1 more source

Barrier coastal depositional system and its characteristics in Xihu Sag, East China Sea Shelf Basin: A case study of lower Pinghu Formation in Pingbei area [PDF]

open access: yesYouqicang pingjia yu kaifa
The Xihu Sag is a hydrocarbon-rich sag with high oil and gas exploration value in East China Sea Shelf Basin. In recent years, continuous breakthroughs have been achieved in the exploration efforts of the Eocene Pinghu Formation of Xihu Sag, making it an
YIN Guofeng, ZHAO Yong
doaj   +1 more source

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

open access: yesEarth 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   +5 more
doaj   +1 more source

Depositional environment of shale in Wufeng and Longmaxi Formations, Sichuan Basin

open access: yesPetroleum 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

Seismic Facies Analysis on 2d Seismic Reflection Profile in Baruna and Jaya Line at North East Java Basin [PDF]

open access: yes, 2016
Two dimension (2D) seismic profile of Baruna and Jaya lines at North-East Java Basin show seismic reflector characteristics that can be used to interpret sediment thickness and continuity.
Ardhyastuti, S. (Sri)   +4 more
core   +1 more source

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

open access: yesJGEET: 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   +3 more
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]

open access: yesOil 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

open access: yesChina 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   +6 more
doaj   +1 more source

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