Results 81 to 90 of about 64,179 (348)
Yaluninogorsk quartz diorite-trondhjemite massif is situated in Alapaevsk-Sukhoy Log zone of Eastern-Ural High potentially productive for Cu (±Mo) porphyry type of mineralization. The massif is a magma chamber 3 × 2 km under central type volcano.
Sergei V. Pribavkin+2 more
doaj +1 more source
ABSTRACT Roof‐cutting by densely drilled holes (RCDDH) has been widely adopted in many coal mines across China as an innovative roof‐cutting technique. However, research on its underlying mechanism and key parameters remains limited, particularly regarding the failure mechanisms of the drilled holes.
Shaowei Liu+6 more
wiley +1 more source
Notes on the petrology of the agglomerates and hypabyssal intrusions between Largo and St. Monans [PDF]
。 Wallace, I.F. Stewart
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ABSTRACT Ground source heat pump systems (GSHPs) have received considerable interest from researchers for the decarbonization of energy use in buildings owing to their higher efficiency. The ground heat exchanger (GHE) is the primary component of a GSHP. Vertical borehole heat exchangers (VBHE) and foundation piles (FP) are common GHEs that researchers
Philip Adebayo+5 more
wiley +1 more source
The picrite-basalts of Kilauea, [Part] 1 of Contributions to the petrology of Hawaiian basalts [PDF]
I. D. Muir, C. E. Tilley
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ABSTRACT The construction of a logging response model for macrolithotypes in coal has been successfully completed. This model has enabled delineation of vertical and planar distribution patterns of coal macrolithotypes within the #5 and #8 coal seams of the Daji block, as well as to forecast the distribution of favorable reservoir conditions.
Wei Zhang+5 more
wiley +1 more source
Taking the Chang 6–Chang 9 layers in the Wuqi area of the Ordos Basin as a case study, this study investigates the pore characteristics of tight sandstones formed under different sedimentary microfacies. The results indicate that tight sandstones associated with distinct sedimentary microfacies exhibit significant variations in pore types, pore size ...
Liling Zhang+7 more
wiley +1 more source
The Petrology of the Igneous Rocks [PDF]
F. H. Hatch, A. K. Wells, M. K. Wells
openalex +1 more source