Results 51 to 60 of about 753 (117)
Caldera of Godean, Sleman, Yogyakarta: A Volcanic Geomorphology Review
Forum Geografi, 2017 Godean hills is located approximately 10 km westward from the Yogyakarta City. The landscape of Godean hills and plains is affected by various factors, such as lithology, geological structure, and sub-aerial process.
Hill Gendoet Hartono +2 more
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Open Geosciences, 2017 In the Es3 formation (third section of the Shahejie) of the Eastern sag section of the Liaohe Depression, basalt and trachyte are predominant in the igneous rock. The reservoir consists of complex reservoir space types.
Zongli Liu +4 more
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Tectonic control on dyke and sill intrusions of active tectonic margine, case study in Cilacap area, Central Java Indonesia [PDF]
MATEC Web of ConferencesControl of geological structures on the presence of dyke and sill intrusions in the Cilacap-Central Java area requires explanation. The research was conducted through a series of fieldwork. Field research is carried out by measuring geological structural
Widagdo Asmoro +5 more
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A Fracture-Surface in Igneous Rock [PDF]
Nature, 1920 THE accompanying photograph (Fig. 1) was taken by me some years ago during the construction of the Shirawta Dam, Bombay Hydro-Electric Works, India. It shows a curious fracture surface due to a heavy gelignite detonation in finely crystalline “trap” rock. So far as I can remember I had seen other examples of this phenomenon, but photographed this as it
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International Journal of Geoheritage and Parks, 2019 The Pilbara region of Western Australia, covering some 500 km × 500 km, provides a diversity of Archaean to Proterozoic igneous rocks in a relatively compact area that records a younging southward crustal history of igneous activity, sedimentation, early
V. Semeniuk, M. Brocx
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Scientific ReportsThe geological phenomenon of igneous rock invading coal seam is widely distributed, which induces mining risk and affects efficient mining. The pre-splitting blasting method of igneous rock is feasible but difficult to implement accurately, resulting in ...
Hongbin Zhao +5 more
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Relationship between Brittleness Index and Crack Initiation Stress Ratio for Different Rock Types
Advances in Civil Engineering, 2020 Brittleness and crack initiation stress (σci) are important rock mechanical properties and intrinsically related to rock deformation and failure. We establish the relationship between σci and uniaxial tensile strength (σt) based on the Griffith stress ...
Juyu Jiang +3 more
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Tertiary Igneous Rocks of the Pyrenees [PDF]
Nature, 1917 THE review of the treatise of Beyschlag, Vogt, and Krusch in NATURE of August 3, 1916, gives prominence to their mention of supposed absence of Tertiary igneous rocks. Yet even their pages figure grey-copper veins of Los Arcos cutting Tertiary beside ophite and granite intrusions.
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Study of borehole stability of volcanic rock formation with the influence of multiple factors
Journal of Petroleum Exploration and Production TechnologyBorehole instability in igneous rock formation has attracted more and more attention in recent ten years. In order to understand the mechanism of wellbore instability in igneous formation, a borehole stability model is established by applying the thermal,
Mingming Zhang +5 more
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CRYSTALLIZATION IN IGNEOUS ROCKS
The Kurume Medical Journal, 1955 In the course of the investigation of concrements formation in human bodies, which come from body fluid, the author has been making efforts to clear whether any similarity exists between the concrements formation and the crystllization of rock forming minerals, which comes from solution, or not.
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