Results 71 to 80 of about 26,348 (308)
Frontiers in Earth ScienceThe Changling fault depression in the southern Songliao Basin hosts volcanic rock reservoirs with significant oil and gas potential, yet their complex pore structures require advanced characterization to optimize resource exploration. To address this, we
Jianfeng Zhu +3 more
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Maximum warning times for imminent volcanic eruptions
, 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 ...
Sammonds, PR, Kilburn, CRJ
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, 2017 Natural relief on mountainous volcanic islands has deep ravines, steep rocky slopes and high coastal cliffs. Volcanic formations have very heterogeneous rocks and soils. Besides, civil and building works sometimes include high cuts on the terrain and, as
García-Ferrera, R. +2 more
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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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Volcanology of tuff rings at Kellyville, Onewhero and Bombay, South Auckland Volcanic Field
, 2011 The South Auckland volcanic field hosts 82 volcanic centres over an area of approximately 300 km2 in the Pukekohe, Bombay, Tuakau, Pukekawa and Onewhero regions. The intraplate, monogenetic basaltic volcanic field was active between 1.59 and 0.51 Ma, and
Gibson, April Christina
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7000 Years of Aboriginal Mining at Sugarloaf Hill in the Riverland Region of South Australia
Archaeology in Oceania, EarlyView.ABSTRACT Silcrete and chert are commonly represented in Aboriginal archaeological lithic assemblages across large parts of the southwestern Murray‐Darling Basin (MDB). In South Australia (SA), these materials were sourced from a series of quarries located along the incised course of the Murray River through the upper Riverland region.
Craig Westell +8 more
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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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Archaeological Prospection, EarlyView.ABSTRACT This document is a report on the field application of non‐invasive geophysical and robotic prospecting methods at the submerged Neolithic site of La Marmotta (Lake Bracciano, Italy), within the LAHKE (LAke Heritage Knowledge and Exploration) project; the study focuses on the practical validation, adaptation and transfer of existing ...
dell' Erba Ramiro +4 more
wiley +1 more source