Results 61 to 70 of about 65,602 (237)

Global Series and Stages for the Ordovician System: A Progress Report

Geologica Acta, 2005
There is no global standard set of chronostratigraphic/geochronologic subdivisions for the Ordovician System/Period. British series/epochs are often used as de facto nomenclature on stratigraphic correlation charts and geologic time scales. However, they
S. FINNEY
doaj   +1 more source

Microscopic Pore Structure Characteristics and Genesis of Low Resistivity Reservoirs: A Case Study of the Wufeng and Longmaxi Formations in the Changning Area, Sichuan Basin

Energy Science &Engineering, EarlyView.
1. Organic matter graphitization forms highly conductive carbon networks, significantly reducing shale resistivity. 2. Major and trace elements further enhance conductivity through electron transfer and electrochemical reactions. ABSTRACT This study investigates the micro‐pore structure characteristics and genesis of low‐resistivity reservoirs in the ...
Xiangyang Pei, Xizhe Li, Wei Guo, Zhenkai Wu, Shengxian Zhao, Yize Huang, Sijie He, Yanan Bian, Weikang He   +8 more
wiley   +1 more source

Numerical Simulations of Hydraulic Fracturing in Carbonate‐Type Hot Dry Rock Reservoirs Based on the Coupled Thermo‐Hydraulic‐Mechanical‐Damage (THMD) Model

Energy Science &Engineering, EarlyView.
ABSTRACT Hydraulic fracturing technology is widely used in Enhanced Geothermal System (EGS) projects to induce fractures and enhance the permeability of thermal reservoirs. The hydraulic fracturing process of hot dry rock (HDR) is actually a multiphysics coupling process that couples the heat transfer field, seepage field, stress field, and damage ...
Zhiyu Tan, Guoqiang Fu, Tianyu Bai, Fan Xiao, Xiaoge Wu   +4 more
wiley   +1 more source

Ordovician conodonts of the Katkoyeh formation in the Kuh-e-Bonorg section, Kalmard Horst (west of Tabas) [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2020
In this research, Ordovician conodonts obtained from the sedimentary succession of the informal Katkoyeh formation is studied in a stratigraphic section at the south of Kuh-e-Bonorg, eastern flank of Kalmard Anticline in the west of Tabas (Central Iran).
Mohammad Nezhadabbas, Abbas Ghaderi, Hadi Jahangir, Ali Reza Ashouri   +3 more
doaj   +1 more source

Multi‐Scale Evolution Mechanism of Water‐Conducting Fracture Zone in Deep‐Mining Hard Roof

Energy Science &Engineering, EarlyView.
ABSTRACT This study addresses the significant discrepancies in traditional methods for predicting the height of water‐conducting fracture zones in deep‐mining hard roofs, which can lead to catastrophic water inrush events. The 110,504 working face of Banji Coal Mine was chosen as the research site to systematically investigate the development ...
Yingfu Li, Linyang Bai, Hongwei Cai, Di Hu, Fangang Zeng   +4 more
wiley   +1 more source

Linguloidean brachiopods from the Lower Ordovician (Tremadocian) of northwestern Argentina [PDF]

, 2015
The new obolid Torobolus subplanus gen. et sp. nov., from the lower Temadocian Devendeus Formation, the new species Libecoviella tilcarensis and Leptembolon argentinum, and Ectenoglossa sp.
Benedetto, Juan Luis Arnaldo, Muñoz, Diego Fernando   +1 more
core  

Carbon Storage in Fold‐and‐Thrust Belts: An Overlooked Gigatonne Storage Opportunity

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT This study presents numerical investigations of the trapping characteristics of fold‐and‐thrust belt structures, defining three carbon capture and storage (CCS) play types that could be used to store commercial volumes (millions of tonnes) of CO2.
Lars W. Koehn, Ethan W. Conley, Isabella Andrade, Philip S. Prince, Ryan M. Pollyea   +4 more
wiley   +1 more source

Research progress on marine oil and gas accumulation in Tarim Basin

Shiyou shiyan dizhi, 2020
In recent years, great achievements have been made in the exploration of ultra-deep marine oil and gas in the Tarim Basin. New oil and gas discoveries have been achieved in the Shunbei Ordovician, Tazhong Cambrian and Tahe deep strata, which provide ...
Yi GU, Jiwen HUANG, Cunshan JIA, Zhibing SHAO, Yongge SUN, Qinghua LU   +5 more
doaj   +1 more source

Early Cretaceous–Late Miocene Basin–Mountains Pattern in the Northeastern Margin of the Tibetan Plateau, NW China: Evidence From Detrital Zircon Chronology in the Lanzhou Basin

Geological Journal, EarlyView.
Using DZmix and DZstats models, we quantified the contributions of potential sources of the Lanzhou basin. Our findings indicate that the Cenozoic cooling and denudation signals primarily originated from Qilian and West Qinling, which were the main sediment sources.
Hang Liu, Hu–jun Gong, Fen–hong Luo, Rui Zhang   +3 more
wiley   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source