Results 61 to 70 of about 146,316 (260)
Applied Computing and GeosciencesRock classification based on chemical components is a common task in the geochemical domain. Literature recommends the Total Alkali and Silica (TAS) discrimination diagram for classifying igneous volcanic rocks by the sum of Na2O and K2O in relation to ...
Malte Mues +2 more
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Geochemical Features of Magmatic Rocks and Mineral Deposit Genesis of Xinjiang Aktas Gold Deposit
Chemical Engineering Transactions, 2017 There is a close spatial relationship between the ore body of Aktas gold deposit and the contact zone of the rock body of different periods. This paper by conducting a detailed study of geological and geochemical characteristics with 15 samples of ...
Lizhi Yang, Xiangbin Wu, Tiaoli Li
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Venus: Geochemical conclusions from the Magellan data [PDF]
Though the Magellan mission was not designed to collect geochemical or petrological information, it has done so nonetheless. Since the time of the Pioneer Venus mission it has been known that high-altitude (greater than 2.5-5 km) mountainous areas on ...
Wood, J. A.
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Maximum warning times for imminent volcanic eruptions [PDF]
, 2005 Accelerations in seismicity are important precursors to eruptions at volcanoes reawakening after extended repose intervals. These have previously been quantified for subduction-zone settings in terms of the linkage of crustal faults by shearing ...
Kilburn, CRJ, Sammonds, PR
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Discover Applied SciencesMeta basic volcanic rocks were occupied the Xiaohuangshan area, Beishan, Inner Mongolia. Previous studies on the formation age and tectonic environment of this set of strata had less data, and opinions on the attribution of this set of strata were not ...
Xinzhuo Hu +3 more
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Indonesian Journal on Geoscience, 2014 http://dx.doi.org/10.17014/ijog.vol4no2.20091The Semilir Formation was typically originated from products of a very explosive volcanic activity, i.e. breccias, lapillistones, and tuffs containing abundant pumice.
Sutikno Bronto +3 more
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Geological-morphological description of the Sedna and Guinevre planitiae on Venus (photomap sheets B-11, B-20, B-21) [PDF]
Presented are descriptions and maps of the region of Sedna and Guinevra Planitiae--representatives of the largest geological providense on Venus comprised of volcanic rock.
Bobina, N. N. +9 more
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Performance of treating aquaculture effluent using PHBV/volcanic rock/pyrite synergistic
能源环境保护In order to address the low nitrogen and phosphorus removal efficiencies caused by a low carbon-to-nitrogen ratio in aquaculture effluents, a biofiltration device based on the synergistic coupling of 3-hydroxybutyrate and 3-hydroxyvalerate copolymers ...
ZHANG Haigeng +5 more
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Natural Gas Industry B, 2019 Recently, a high-yield gas flow of 22.5 × 104 m3/d was achieved in the wildcat well Yongtan 1, deployed by PetroChina Southwest Oil and Gasfield Company, and an extrusive facies volcaniclastic gas reservoir was first discovered in the Sichuan Basin ...
Xinhua Ma +3 more
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Asal-usul Pembentukan Gunung Batur Di Daerah Wediombo, Gunungkidul, YOGYAKARTA [PDF]
, 2007 Http://dx.doi.org/10.17014/ijog.vol2no3.20073Physiographically, the Gunung Sewu Subzone is predominantly composed of limestone of the Wonosari Formation, but in Wediombo area volcanic rocks of the Wuni Formation is exposed.
Bronto, S. (Sutikno) +1 more
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