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32681
The Complex Vertical Motion of Intraplate Oceanic Islands Assessed in Santiago Island, Cape Verde
Published 2020-03-01“…We thus obtain a vertical motion history consisting of time‐averaged vertical motion rates spanning the five intervening periods between paleoshoreline formation and the present day: (1) 5.06 to 3.29 Ma—seamount growth or island subsidence because all the rocks in this period are submarine; (2) fast uplift (approximately 0.96 mm/a) from 3.29 to 2.87 Ma, mostly responsible for putting submarine lavas currently close to 410 m altitude; (3) relatively fast subsidence (approximately −0.11 mm/a) between 2.87 and 2.18 Ma; (4) stagnation from 2.18 to 0.811 Ma; and (5) relatively fast uplift (approximately 0.14 mm/a) between 0.811 and 0 Ma. …”
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32682
Major and Trace-Element Chemistry of Cr-Spinel in Upper Mantle Xenoliths from East Antarctica
Published 2022-06-01“…Cr-spinels in the upper mantle peridotite xenoliths from two Late Mesozoic intrusions of alkaline-ultramafic rocks in Jetty Peninsula (East Antarctica) were studied in situ for their major and trace-element compositions by SEM and LA-ICP-MS. …”
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32683
Hydrogeochemical investigation of ground and surface water in the Neogene - Quaternary sediments
Published 2015-01-01“…During the prospecting, water samples were collected from surface water streams, springs, wells, drills, water reservoirs, as well as the samples of stream sediments and rocks. Hydrogeochemical investigations are of significance, where, in the water of Vrsac hills, elevated levels of radionuclides U, Ra and Rn, and other toxic elements were detected with values above maximum allowed concentrations for drinking water. …”
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32684
CONTAMINATION BY HEAVY METALS AND ITS CONSEQUENCES: REFLECTIONS
Published 2020-02-01“…One of the types of pollutants present in the environment are heavy metals, which are found naturally in water bodies due to the weathering of rocks and volcanic activities. The present work is of bibliographic nature, based on searches in the bibliography pertinent to the theme. …”
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32685
Investigation of the Oriented Structure Characteristics of Shale Using Fractal and Structural Entropy Theory
Published 2022-12-01“…Unconventional shale reservoirs and typical fine-grained rocks exhibit complicated, oriented features at various scales. …”
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32686
Quantitative Characterization of Coastal Cliff Retreat and Landslide Processes at Portonovo–Trave Cliffs (Conero, Ancona, Italy) Using Multi-Source Remote Sensing Data
Published 2023-08-01“…In this work, we present a case study of the Conero Regional Park (Northern Adriatic Sea, Ancona, Italy) cliff-top retreat, characterized by Neogenic soft rocks (flysch, molasse). In particular, the study is focused in the area between the beach of Portonovo and Trave (south of Ancona), which has been studied using aerial orthophoto acquired between 1978 and 2021, Unmanned Aerial Vehicle (UAV) photographs (and extracted photogrammetric model) surveyed in September 2021 and 2012 LiDAR data. …”
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32687
Ridge Subduction: Unraveling the Consequences Linked to a Slab Window Development Beneath South America at the Chile Triple Junction
Published 2023-09-01“…The temporal evolution of the modeled temperature is consistent with observed heat flow data, and with magmatism and high‐temperature metamorphism recorded in Chilean forearc rocks. Such migrated partial melts might explain the low viscosity inferred and low seismic velocity anomalies imaged in the slab window beneath South America, and the common geochemical signature of the Chile Ridge, the Taitao Ophiolite and the backarc magmatism. …”
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32688
Vendian – Early Cambrian granites of the Krutorechensky complex (Northern Urals, Russia): protolith age, geodynamic conditions of generation and transformation
Published 2019-12-01“…We obtained new data on compositions and ages of the Krutorechensky granites (KG) composing an intensely tectonized and boudinaged elongated body discovered in meta‐ terrigenous and meta‐volcanogenic rocks in the western part of the MUF zone. In chemical composition, these gra‐ nites are similar to the Vendian‐Cambrian collisional granitoids of the Isherim and Lyapin blocks. …”
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32689
Assessing the potential of composite confining systems for secure and long-term CO2 retention in geosequestration
Published 2023-11-01“…However, considering that the amount of CO2 is limited by a decadal injection period, vertical migration of CO2 can be effectively halted by a composite system of discontinuous shale/silt/mudstone barriers in bedded sedimentary rocks. Here, we studied the impact of depositional architectures in a composite confining system on CO2 migration and confinement at reservoir scale. …”
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32690
Alternating acid and alkaline diagenesis in the Shahejie Formation of E12 structure in the Laizhou Bay Sag, Bohai Bay Basin
Published 2023-01-01“…Moreover, they were not altered by organic acid due to the far lateral distance from source rocks. By contrast, the Es3 reservoirs in the well A-2 with hydrocarbon accumulations, contain an anomalously high porosity zone due to the superimposition of five episodes of alternate acid-alkaline fluids. …”
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32691
Spatial Variation and Frequency Dependence of Lg Wave Attenuation With Site Response Correction Along the CCSE Array in Central California, US
Published 2022-01-01“…Positive site responses obtained by reverse two‐station method are found at 34 stations out of total 46 stations examined, and their responses are mostly correlated with surficial lithology (i.e., sedimentary rocks) along the profile, rather than the thickness of the sediments. …”
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32692
Comparison of hydrocarbon and geothermal energy production in the Netherlands: reservoir characteristics, pressure and temperature changes, and implications for fault reactivation
Published 2023-01-01“…The review shows that geological characteristics for most geothermal target reservoirs are similar to those of hydrocarbon, albeit geothermal projects so far target higher porosity rocks than hydrocarbon reservoirs. On the other hand, pressure and temperature changes are very different, with significant depletion for hydrocarbon fields vs significant cooling around geothermal injection wells. …”
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32693
"GUTTER CAST" TEKSTURA KAO MOGUĆI KORELACIJSKI MARKER - PRIMJER DONJOTRIJASKIH SEDIMENATA PROFILA PLAVNO I STRMICA (HRVATSKA I BOSNA I HERCEGOVINA)
Published 2002-12-01“…Appearance of gutter casts exposed on lower bedding planes of sedimentary rocks in Mudstone and Siltstone-mudstone lithofacies has been considered as a consequence of bottom current flow component in the outer shelf area. …”
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32694
Richness of lichen species, especially of threatened ones, is promoted by management methods furthering stand continuity.
Published 2013-01-01“…We analyzed how lichen species richness responds to management and habitat variables (standing biomass, cover of deadwood, cover of rocks). We found strong regional differences with highest lichen species richness in the Schwäbische Alb, probably driven by regional differences in former air pollution, and in precipitation and habitat variables. …”
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32695
Diversity and habitat preferences of benthic diatoms from South Bay (Livingston Island, Antarctica)
Published 2022-03-01“…This study reports on marine benthic diatoms from South Bay, Livingston Island, focusing on diatoms living on hard substrata, and species distribution across different coastal habitats.Material and methods – Samples were collected from tidal pools (19), intertidal cobbles (9), artificial substrata installed at various depths (10), coastal rocks (2), and bottom sediments at depths > 20 m (2). …”
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32696
THE ORIGIN OF THE TOTAL ALPHA AND BETA RADIATION VALUES OF THE WATERS OF ÇANAKKALE STRAIT (ÇANAKKALE/TURKEY)
Published 2017-07-01“…This result indicates that the water is affected by the rocks through which it passes.…”
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32697
Spatial Distribution and Ecological Risk Assessment of Heavy Metals in the Sediment of a Tropical Mangrove Wetland on Hainan Island, China
Published 2022-11-01“…Correlation analysis and cluster analysis indicated that As mainly originated from ships and aquaculture in the harbor waters, Cd and Hg from agriculture, Cr, Cu, Ni, Zn and Co from the weathering of parent rocks, and Pb from soot emitted from metal smelters and automobile exhaust. …”
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32698
Estimation of Water Balance for the Central Basin of Erbil Plain (North of Iraq)
Published 2019-04-01“…Erbil city located, in the northern part of Iraq, within the central basin of Erbil plain which covers an area about 1400 Km2 where Erbil city area measures about 70 Km2, is located between latitudes (36ᵒ 08 30̋ - 36ᵒ 14 15̋) north and longitudes (43 ° 57 '30 "- 44 ° 03' 20") east, The rocks exposures at the central Erbil plain date back to the (Upper Miocene-Recent) and this includes Ingana, Muqdadiya, Bai Hassan formations as well as Quaternary deposits. …”
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32699
Characterizing Complex Deformation, Damage, and Fracture in Heterogeneous Shale Using 3D-DIC
Published 2023-03-01“…This image-based technique is more effective not only for understanding the laminated and naturally fractured rocks but also for predicting the hydraulic fractures that will occur during the stimulation process.…”
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32700
Microstructural and Geochronological Analyses of Mesozoic Ductile Shear Zones in the Western Gyeonggi Massif, Korea: Implications for an Orogenic Cycle in the East Asian Continenta...
Published 2020-04-01“…New zircon U-Pb isotopic ages from mylonitic granite in the SSZ and volcanic rocks in the Deokjeok Formation, combined with previously published geochronological data, indicate that the post-collisional granites and volcano-sedimentary sequence were nearly contemporaneous (ca. 223–217 Ma) and juxtaposed because of the Late Triassic orogenic collapse and subsequent new orogenic event. …”
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