Semiquantitative microscopic pore characterizations of the metamorphic rock reservoir in the central paleo-uplift belt, Songliao Basin [PDF]
Scientific Reports, 2022 Currently, metamorphic rock is a common target for natural gas exploration, and reservoirs are the key factors restricting natural gas exploration and development in metamorphic rocks.
Zhouqiang Zeng +6 more
doaj +3 more sources
Weathering Processes and Mechanisms of Low-Grade Metamorphic Rock following Freeze-Thaw Processes
Geofluids, 2023 A remarkable risk in the field of rock engineering is the natural exposure of low-grade metamorphic rock to the freeze-thaw process. Examples of such materials are slate and phyllite, which are employed approximately mountainous permafrost zones.
Guopeng Wu +3 more
doaj +2 more sources
New age constraints for metasedimentary rocks in southern Finland [PDF]
Bulletin of the Geological Society of Finland, 2023 Metasedimentary rocks from nine sampling sites in southern Finland and an intermediate dyke in one of these sites were sampled for analysis of U–Pb zircon age and geochemical composition.
Paula Salminen, Matti Kurhila
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 +4 more
doaj +1 more source
Study on changes of coal microstructure under the condition of igneous rock intrusion
Meikuang Anquan, 2022 In order to study the effect of igneous rock intrusion on coal oxidation, the electronic scanning mirror, specific surface area tester and pressure mercury meter are used to test the coal samples before and after the igneous rock intrusion, by comparing
TANG Hui
doaj +1 more source
PETROGRAPHY AND PROVENANCE OF SANDSTONE AND STUDIES OF SHALE OF KULDANA FORMATION, KALAMULA AND KHURSHEEABAD AREA, KAHUTA, AZAD KASHMIR [PDF]
Earth Science Malaysia, 2017 Rocks exposed in the study area are Kuldana Formation which is comprised of variegated color shale and sandstone. The model data of Kuldana sandstone exhibit average quartz 35%, feldspars 3%, rock fragments 20% and heavy minerals. The quartz grains are
Ahmer, Muhammad
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
Metamorphic evolutions of high-pressure low-temperature units from ophiolitic mélange of North Soghan (NE Hajiabad, Hormozgan) [PDF]
پترولوژی, 2021 The Seghin metamorphic complex of ophiolitic mélange from the north Soghan, composed of metamorphic suites varying in protolith and metamorphic grade. The rock units of this complex have been metamorphosed under PT conditions of pumpellyite- actinolite ...
akbar ahmadvand +3 more
doaj +1 more source
Geology of the Montigiu Nieddu metamorphic basement, NE Sardinia (Italy)
Journal of Maps, 2020 A geological map at 1:10,000 scale is presented that shows the distribution of the metamorphic rock units in the area of Montigiu (Mt.) Nieddu (NE Sardinia). These units belong to the High-Grade Metamorphic Complex in the Inner Zone of the Variscan chain
Gabriele Cruciani +3 more
doaj +1 more source
The Facies and Metamorphism Types Determination of Metamorphic Rock in The Part of Mekongga Complex
Geosfera Indonesia, 2020 Lambolemo Village is geomorphologically dominated by hilly slopes morphology. Lithology in the form of metamorphic rocks are mica schists and chlorite schists. The present research aimed to determine the facies and metamorphism types of metamorphic rocks
M. Musnajam +4 more
doaj +1 more source