Results 71 to 80 of about 46,306 (289)

Spatial Variations in Methane Content and Their Main Controlling Factors of the Deep‐Buried Coalbed in the Nalinhe–Hengshan Area, Ordos Basin

open access: yesEnergy Science &Engineering, EarlyView.
Ash yield is the primary geological factor controlling the spatial variations in the total gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin. However, porosity dominates the differential enrichment of the free gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin.
Shi Yunhe   +9 more
wiley   +1 more source

Origin and Depositional Environments of the Evaporite and Carbonate Complex (Upper Permian) from the Central Part of the Dinarides (Southern Croatia and Western Bosnia)

open access: yesGeologia Croatica, 2010
The Upper Permian sediments from central part of the Dinarides contain three main facies : 1. - carbonates; 2.- evaporites with early diageneticaldolomites and 3.- clastic rocks (siltstones and sandstones) and one special rock type- carbonate ...
Josip Tišljar
doaj   +1 more source

Arvildia, an Upper Permian moss and its possible relationships [PDF]

open access: diamond, 2023
Michael S. Ignatov   +3 more
openalex   +1 more source

Influence of palaeoweathering on trace metal concentrations and environmental proxies in black shales [PDF]

open access: yes, 2017
The mineralogical and chemical compositions of Lower Carboniferous (Tournaisian) marine black shale from the Kowala quarry, the Holy Cross Mountains, Poland, were investigated.
Agnieszka Pisarzowska   +128 more
core   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

open access: yesGeological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao   +4 more
wiley   +1 more source

Geology of Tunceli-Bingöl Region of Eastern Turkey

open access: yesBulletin of the Mineral Research and Exploration, 1965
This region is located in the Taurus orogenic belt of the highland district of Eastern Turkey. Lower Permian metasediments and Upper Permian suberystalline limestone are the oldest exposed formations of this region.
F. A. AFSHAR
doaj  

New results of microfaunal and geochemical investigations in the Permian–Triassic boundary interval from the Jadar Block (NW Serbia)

open access: yesGeologica Carpathica, 2018
Detail results of microfaunal, sedimentological and geochemical investigations are documented from a newly discovered section of the Permian–Triassic boundary (PTB) interval in the area of the town of Valjevo (northwestern Serbia).
Sudar Milan N.   +7 more
doaj   +1 more source

Main factors controlling hydrocarbon accumulation in the Northwestern Sichuan Basin

open access: yesFrontiers in Earth Science, 2022
The basin-mountain transition regions of foreland basins are hot spots for hydrocarbon exploration worldwide, while the complex geological features and hydrocarbon accumulation rules make hydrocarbon exploration very difficult.
Hang Xiao   +8 more
doaj   +1 more source

Permian in north Bulgaria. II. Formal lithostratigraphy related to the Upper Permian

open access: yesGeologica Balcanica, 1993
The following nine official lithostratigraphic units are subdivided and described within the frames of an Upper Permian Lower Danube Group in accord with the requirements of the Bulgarian Stratigraphic Code: Mirovo Formation, Vetrino Formation (with Žitnica and Hrabrovo Menber), Târgoviste Formation (with Trastikovo and Bezvodica Member), Totleben ...
openaire   +1 more source

The Permian or Upper Carboniferous flora of West Virginia and S.W. Pennsylvania

open access: yes, 1880
Geschenkexlibris-Etikette: "With compliments of WM.M. Fontaine, University of VA., and I.C.
Fontaine, William Morris   +1 more
openaire   +5 more sources

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