Results 71 to 80 of about 6,336 (226)

Reconstruction of karst aquifer system beneath lower coal group and source-specific prevention and control technology for karst water disaster in Huainan Coalfield

Meitan kexue jishu
The Huainan Coalfield boasts abundant coal resources, with an annual coal production of 80 million tons in 2022, making it one of China's major coal-producing regions in eastern China.
Zhigang XIE, Feng HAN, Shancheng CHEN, Hai DING, Gui SUN, Guangquan XU   +5 more
doaj   +1 more source

Geophysical Investigation of Geothermal Potential in Southern Thailand: Insights From GGMplus Gravity

Earth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Southern Thailand hosts numerous low‐ to medium‐enthalpy geothermal manifestations in a non‐volcanic setting. This study investigates the geothermal potential of the region through the integration of satellite‐derived gravity data and geological observations.
T. Phiranram, P. Chenrai, S. Phantuwongraj, C. Kitpracha   +3 more
wiley   +1 more source

Upper Ordovician formations in the Maysville area, Kentucky [PDF]

, 1966
Upper Ordovician strata in the Maysville area, Kentucky, are divided into five formations. The basal Kope Formation is overlain by the Fairview Formation. Above the Fairview are two newly defined map units, the Grant Lake Limestone and the overlying Bull Fork Formation. The Preachersville Member of the Drakes Formation overlies the Bull Fork.
openaire   +1 more source

Ripple marks as indicators of Late Ordovician sedimentary environments in Northwest Estonia [PDF]

Estonian Journal of Earth Sciences, 2008
Late Ordovician sedimentary environments promoting the development of ripple marks in shallow shelf carbonate deposits of northern Estonia are analysed.
Hints, Linda, Miidel, Avo
doaj  

A new Late Ordovician bubble-headed trilobite species from South West Wales and its implications for biostratigraphy [PDF]

Acta Palaeontologica Polonica
A new species of bubble-headed trilobite, Staurocephalus oliveae sp. nov., is described from 250 specimens collected from a recently discovered locality in the Sholeshook Limestone Formation (upper Katian, Upper Ordovician; Ashgill, Cautleyan Zone 1 ...
MANUS G. LEIDI, LUCY M.E. MCCOBB, PATRICK D. MCDERMOTT, ALAN W. OWEN   +3 more
doaj   +1 more source

Linking the Tectonic Evolution of Hainan Island and Borneo Since the Paleozoic: Implication for Interaction Between the Tethyan and Paleo‐Pacific Tectonic Domains in Southeast Asia

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract The interaction between the Tethyan and Paleo‐Pacific subduction systems in Southeast Asia since the Paleozoic is still poorly understood. Hainan Island and Borneo, located near the junction of the Tethyan and Paleo‐Pacific domains, provide the critical regions for understanding the dynamic processes and interaction between the two tectonic ...
Yang Zhou, Pingping Li, Shan Li, Andrew Carter, Jonny Wu, Yi Yan, Yongjian Yao, Wei Liu, Lin Wang, Junzhi Liu, Khor Weichung, Rongwei Zhu, Zuofei Zhu, Qi Zhao, Qingsong Liu   +14 more
wiley   +1 more source

New SHRIMP U-Pb data from the Famatina Complex: constraining Early–Mid Ordovician Famatinian magmatism in the Sierras Pampeanas, Argentina

Geologica Acta, 2009
New SHRIMP U-Pb zircon ages are reported for igneous and sedimentary rocks of the Famatina Complex, constraining the age of the magmatism and the ensialic basins.
J.A. DAHLQUIST, R.J. PANKHURST, C.W. RAPELA, C. GALINDO, P. ALASINO, C.M. FANNING, J. SAAVEDRA, E.G. BALDO   +7 more
doaj  

Genesis of dolomite in the upper assemblage of the Ordovician Majiagou Formation in the southeastern Sulige gas field, Ordos Basin, China: Evidence from C, O, and Sr isotopes and major and trace elements

Energy Exploration & Exploitation, 2020
Typical dolomite reservoirs exist in the upper assemblage of the Ordovician Majiagou Formation in the southeastern Sulige gas field, Ordos Basin, however, the current understanding of dolomite genesis needs to be clarified.
Liwen Zhu, Zhenliang Wang, Qianghan Feng, Bo Zhang, Li Wei, Zhuyu Yu   +5 more
doaj   +1 more source

Lamina Influences on Tensile Strength of Shallow Marine Shales from Upper Ordovician, Western Ordos Basin. [PDF]

ACS Omega, 2023
Wang D, Liu Z.
europepmc   +1 more source

Non‐Uniqueness, Symmetries and Invariance of Thermal History Modelling in Sedimentary Basins

Basin Research, Volume 38, Issue 4, July–August 2026.
This paper approaches non‐unique inverse problems by generating a representative ensemble of all possible solutions using the concept of symmetry. In the context of basin modelling, a symmetry is any manipulation of a forward model's parameters (e.g., thermal history) that leaves the model output (e.g., downhole vitrinite reflectance) unchanged ...
J. Xiao, D. Waltham, Y. Wang
wiley   +1 more source