Results 21 to 30 of about 78,963 (335)

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

Potential of basalt dust to improve soil fertility and crop nutrition

Journal of Agriculture and Food Research, 2022
The search for higher yields, lower production costs, and increased sustainability in agriculture implies optimizing crop nutritional management. In this sense, basalt dust has shown potential to improve soil fertility and crop nutrition.
Lucas Terto Conceição, Gutierres Nelson Silva, Heverton Manoel Silva Holsback, Caroline de Figueiredo Oliveira, Nericlenes Chaves Marcante, Éder de Souza Martins, Fabio Luís de Souza Santos, Elcio Ferreira Santos   +7 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

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

The late Mesozoic-Cenozoic tectonic evolution of the South China Sea: A petrologic perspective [PDF]

, 2014
This paper presents a review of available petrological, geochonological and geochemical data for late Mesozoic to Recent igneous rocks in the South China Sea (SCS) and adjacent regions and a discussion of their petrogeneses and tectonic implications. The
Castillo, PR, Shi, X, Yan, Q
core   +2 more sources

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

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

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

Sr-Nd isotope geochemistry of the early Precambrian sub-alkaline mafic igneous rocks from the southern Bastar craton, Central India [PDF]

, 2009
Sr–Nd isotope data are reported for the early Precambrian sub-alkaline mafic igneous rocks of the southern Bastar craton, central India. These mafic rocks are mostly dykes but there are a few volcanic exposures.
BL Weaver, DA Papanastassiou, DJ DePaolo, F Kalsbeek, G Sarkar, Gulab C. Gautam, H Crookshank, HC Halls, J Blichert-Toft, JE French, JE French, JJW Rogers, JJW Rogers, M Anand, M Ramakrishnan, NM Evensen, Rajesh K. Srivastava, RCO Gill, RE Ernst, RE Ernst, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RL Rudnick, Rob M. Ellam, RP Hall, RW Maitre Le, SA Drury, SL Goldstein, SM Naqvi, SR Taylor, TE Krough, TN Irvine, V Rajamani   +39 more
core   +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