Results 81 to 90 of about 361,496 (222)

Reservoir characterization and potential of the old red sandstone around the inner moray firth, NE Scotland [PDF]

, 1993
Old Red Sandstone deposition in North East Scotland occurred during Devonian times within the Orcadian Basin, a northeast-southwest elongated structure. The basin formed in an extensional tectonic regime that resulted from gravitational collapse of over ...
Forbes, Douglas
core  

A Triassic chronostratigraphic and palaeogeographic framework for the Utsira High area, northern North Sea: Reconstructing a basin‐scale drainage divide

Sedimentology, Volume 73, Issue 6, Page 2417-2453, October 2026.
ABSTRACT The Triassic succession of the northern North Sea comprises a series of interbedded sandstones, mudstones and conglomerates deposited under a fluctuating arid to semi‐humid climate regime, which are often difficult to correlate regionally due to differing lithostratigraphic schemes and poor age control. Despite existing regional studies on the
Riccardo Sordi, Adrian Hartley, Shaan Heydenrych, Spyridon Saltapidas   +3 more
wiley   +1 more source

Ordovician deep dolomite reservoirs in the intracratonic Ordos Basin, China: Depositional model and Diagenetic evolution

Energy Exploration & Exploitation, 2018
Recent natural gas discoveries indicate that non-karstification-dominated reservoirs exist in the intracratonic Ordos Basin. This study examines the sedimentological and geochemical characteristics needed to clarify the depositional model and diagenetic ...
Anqing Chen, Shenglin Xu, Shuai Yang, Hongde Chen, Zhongtang Su, Yijiang Zhong, Sihan Hu   +6 more
doaj   +1 more source

Cryogen‐Aided Chromatographic Purification of Millimole Quantities of Methane for Spectroscopic Clumped Isotope Analysis

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Quantum cascade laser absorption spectroscopy (QCLAS) is a fast and reliable method for analyzing the bulk (𝛿13C‐CH4, 𝛿D‐CH4) and clumped isotopic (∆13CH3D and ∆12CH2D2) composition of methane. However, precise measurements of ∆12CH2D2 require 0.5 to 1.8 mmol of purified methane (equivalent to 15 to 40 mL at STP).
Nico Kueter, Jan G. C. Meissner, Naizhong Zhang, Léna Msonnereau, Lukas Emmenegger, Joachim Mohn, Stefano M. Bernasconi   +6 more
wiley   +1 more source

High Tree Species Diversity Promotes Thermal Enhancement Response of Microbial Carbon Use Efficiency

Advanced Science, Volume 13, Issue 53, 24 September 2026.
ABSTRACT Predicting soil carbon dynamics under warming is constrained by limited understanding of microbial thermal adaptation, particularly whether microbial carbon use efficiency (CUE) can adapt to warming and how plant diversity modulates this response. Using soils from a natural tree species diversity gradient in a subtropical forest, we combined a
Pengpeng Duan, Changqing Ye, Xinyi Yang, Chaoqun Wang, Wolfgang Wanek, Jian‐sheng Ye, Hongzhao Yuan, Hu Du, Kongcao Xiao, Xunyang He, Kelin Wang, Dejun Li   +11 more
wiley   +1 more source

Characteristics of Lacustrine Diamictite and Analysis of Diagenetic Reservoir Facies in the Neogene Lower Youshashan Formation in the Dafengshan Tectonic Belt in the Qaidam Basin

Energy Science & Engineering
To address persistent challenges in lithological classification and diagenetic characterization of mixed sedimentary rocks in the Lower Youshashan Formation (Neogene) of the Fengxi area, Dafengshan structural belt, northwestern Qaidam Basin, an ...
Lin Xie, Chang Liu, Hui He, Xianming Li, Mingqiu Hou, Pengshan Ma, Yu‐Jianjun Xue, Liang Qiao   +7 more
doaj   +1 more source

Flexural bulges and foredeep basins: Dynamic tectonic control on shifting depocentres and condensed facies, Upper Cretaceous (Santonian), Western Canada Foreland Basin

The Depositional Record, Volume 12, Issue 4, September 2026.
Allostratigraphically defined mudstone packages show marked along‐strike thickness variation, interpreted to be related to shifting thrust activity in the orogen; loading cycles lasted about 750 kyr. Close to the orogen, the forebulge is mantled by shelly sandstone whereas far from the orogen, the forebulge is typified by organic‐rich mudstone ...
Omar N. Al‐Mufti, A. Guy Plint, El‐Mahadia I. Mohammed, Ireneusz Walaszczyk, Y. Greg Hu   +4 more
wiley   +1 more source

Primary dolomite formation on a Carnian alluvial plain/ carbonate platform

, 2016
Large amounts of dolomite occur in the Alpine Triassic units, but their origin is still poorly understood due to their late diagenetic overprint.
Nereo Preto, Patrick Meister, Maximilian Rieder, Silvia Frisia, Jörn Peckmann, Simon Niebergall, Gerlinde Habler, Anna Breda   +7 more
core  

Geochemical characteristics and genetic mechanism of dolomite reservoirs in the Dazhuoma area, Qiangtang Basin

Open Geosciences
Dolomite is a major reservoir rock in many petroliferous basins, and has long been a central research focus for oil and gas resource evaluation and exploration. Here, we investigate the petrological and elemental geochemical characteristics of the Middle
Liu Hu, Chen Wenbin, Huang Lili, Yue Mei, Cao Taotao, Xie Yuan, Liu Hui, Peng Qinghua, Chen Yanjiang, Gao Meiling   +9 more
doaj   +1 more source

Diagenetic evolution and geochemical controls on carbonate platform development in the Middle Eocene Jahrum Formation, Zagros Basin

The Depositional Record, Volume 12, Issue 4, September 2026.
Integrated petrographic, mineralogical and geochemical workflow for reconstructing the diagenetic evolution of the Middle Eocene Jahrum Formation in the Zagros Basin. The diagram illustrates the methodological framework combining field observations, laboratory analyses (XRD, SEM‐EDS, stable isotopes, cathodoluminescence), pyrite framboid geochemistry ...
Mehdi Baniasadi, Vahid Ahmadi, Mohammad Reza Esmaeilbeig, Pooria Kianoush   +3 more
wiley   +1 more source