Results 21 to 30 of about 78,364 (330)

Transformation of minerals at the boundary of magma-coal contact zone: case study from Wolonghu Coal Mine, Huaibei Coalfield, China

International Journal of Coal Science & Technology, 2020
Mesozoic and Cenozoic magma activity in the Wolong Lake mining area of Huaibei is frequent, and the degree of magma intrusion into coal seams remarkable.
Xing Chen, Liugen Zheng, Yalin Jiang, Chunlu Jiang   +3 more
doaj   +1 more source

Prediction of uniaxial compressive strength of rock based on lithology using stacking models

Rock Mechanics Bulletin, 2023
Uniaxial compressive strength (UCS) of rock is an essential parameter in geotechnical engineering. Point load strength (PLS), P-wave velocity, and Schmidt hammer rebound number (SH) are more easily obtained than UCS and are extensively applied for the ...
Zida Liu, Diyuan Li, Yongping Liu, Bo Yang, Zong-Xian Zhang   +4 more
doaj   +1 more source

Performance of the X-ray powder diffraction (XRD), X-ray fluorescence (XRF) and the industrial computed tomography used for characterization of the vesicular volcanic rock.

Brazilian Journal of Radiation Sciences, 2021
Volcanic rock is a designation in geology given to extrusive igneous rocks. One type of igneous rock of interest, in economic terms, is vesicular, since, besides the knowledge of the morphology (positioning, size, direction, and interconnectivity of the ...
Rodrigo Silva Santos, Francisco Assis Cavallaro, Thiago Lynyker da Silva Bernardes, Rafael Aquino Amadeu, Rafael H. L. Garcia, Alexandre França Velo, Carlos Henrique Mesquita, Margarida Mizue Hamada   +7 more
doaj   +1 more source

Soil Depth Prediction Model Using Terrain Attributes in Gangwon-do, South Korea

Applied Sciences, 2023
Soil depth is a crucial parameter in slope stability analysis in mountainous areas. The drilling survey is the most reliable method for determining soil depth, but it requires a high cost for the vast geographical area.
Jinwook Kim, Hosung Shin
doaj   +1 more source

Influences of Permian igneous rock on seismic imaging of underlying strata in the Hanilcatam area, Tarim Basin, China

Journal of Natural Gas Geoscience, 2019
Large-scale Permian igneous rock is developed in the Hanilcatam area, Tarim Basin. In order to accurately capture influences of thick igneous rock on seismic imaging of its underlying strata based on actual drilling, well logging and 3D seismic data, the
Dong Sun, Xiaoqian Shi, Zhenqing Wang, Lixin Chen, Jing Wang, Jiaqing Sun, Dongdong Dai, Qifei Fang   +7 more
doaj   +1 more source

Instant Attraction: Clay Authigenesis in Fossil Fungal Biofilms

Geosciences, 2019
Clay authigenesis associated with the activity of microorganisms is an important process for biofilm preservation and may provide clues to the formation of biominerals on the ancient Earth.
Therese Sallstedt, Magnus Ivarsson, Henrik Drake, Henrik Skogby   +3 more
doaj   +1 more source

Theoretical petrology [PDF]

, 1979
The central issues in petrology have remained remarkably unchanged in the last 50 years. In igneous petrology, the focus is on understanding the nature and cause of diversity in igneous rocks: on identifying primary magma types and constraints on the ...
Stolper, Edward
core   +1 more source

Detrital zircon SHRIMP U-Pb age study of the Cordillera Darwin Metamorphic Complex of Tierra del Fuego : sedimentary sources and implications for the evolution of the Pacific margin of Gondwana [PDF]

, 2010
The Cordillera Darwin Metamorphic Complex in the southernmost Andes includes a basement of probable Palaeozoic age, a mid-Jurassic and younger volcano-sedimentary cover, and a suite of Jurassic granites, all of which were jointly metamorphosed during the
Calderon, M., Fanning, C.M., Herve, F., Klepeis, K., Mpodozis, C., Pankhurst, R.J., Thomson, S.N.   +6 more
core   +1 more source

Petrogenesis of igneous rock in Siron Krueng Area, Kuta Cot Glie District, Aceh Besar Regency, Aceh Province

Journal of Aceh Physics Society, 2022
Desa Siron Krueng merupakan salah satu desa yang berada pada Kecamatan Kuta Cot Glie, Kabupaten Aceh Besar, Provinsi Aceh. Formasi yang terdapat pada lokasi penelitian terdiri dari Formasi Seulimeum (Qtps), Formasi Komplek Indrapuri (Tuic), Formasi ...
Dewi Sartika, Reza Gunawan, Akmal Muhni, Fahri Adrian   +3 more
doaj   +1 more source

Two-End-Member Mixing in the Fluids Emitted From Mud Volcano Lei-Gong-Huo, Eastern Taiwan: Evidence From Sr Isotopes

Frontiers in Earth Science, 2022
Mud volcano is one of the most important conduits for deep seated materials to migrate upward in sedimentary basins, convergent margins, and subduction zones.
Hung-Chun Chao, Hung-Chun Chao, Chen-Feng You, Chen-Feng You, In-Tian Lin, Hou-Chun Liu, Ling-Ho Chung, Chun-Chang Huang, Chuan-Hsiung Chung, Chuan-Hsiung Chung   +9 more
doaj   +1 more source