We examined 2947 basalt and volcanic glass artifacts from 38 sites in leeward Kohala Nondestructive energy dispersive X ray fluorescence provided initial geochemical characterizations
Recently basalt fibre reinforced polymer BFRP has been developed which is even cheaper [9] Basalt fibres are an 468 Z Wang et al / Construction and Building Materials 139 2017 467 489 environmentally friendly and non hazardous material as they are directly produced from volcanic rocks without additives [10]
The concentration distribution and occurrence of rare earth elements REEs in coals as well as stone coals in different geological periods from Chongqing were studied
Silicic and alkali intra seam tonsteins were discovered earlier in southwestern China This paper reports new data on the geochemical and mineralogical compositions of tonsteins from the Songzao Coalfield Chongqing southwestern China and provides new insights into the origin and distribution of the minerals and elements present
The forest musk deer Moschus berezovskii is a national Class I protected wild animal in China and the IUCN Red list classifies it as globally endangered It has significant value in traditional Chinese medicine and spices However wild M berezovskii has faced a severe population decline due to human hunting habitat loss and fragmentation Thus studying its
1 School of Geoscience and Technology Southwest Petroleum University Chengdu China; 2 China Railway Eryuan Engineering Group Co Ltd Chengdu China; The YL Tunnel of the Chongqing Kunming high speed railway project a key project of the whole line is a typical ultra long deep tunnel facing geologic problems such as rock bursts large deformation
Rare earth elements and yttrium REY in coal deposits are considered promising alternative sources for these resources owing to their increasing global demand This paper reports the geochemical characteristics of REY in the Late Permian coals from an underground K1a seam section of the Zhongliangshan coalfield in Chongqing southwestern
The magnitude of Cenozoic magmatism is therefore greater than previously thought necessitating a re evaluation of basalt distribution and estimates of eruptive volumes Drill hole data were
In order to explore the rules between gravity anomalies and oil gas distribution characteristics in central and western Sichuan Basin we divided the tectonic unit in central and western Sichuan basin on the base of the analysis of gravity anomaly characteristics and studied the correlation between the oil gas distribution and the local gravity anomaly in the study area
The magnitude of Cenozoic magmatism is therefore greater than previously thought necessitating a re evaluation of basalt distribution and estimates of eruptive volumes Drill hole data were collected from across the Bowen Basin in eastern Australia to compile a regional basalt isopach map This large dataset comprising »150 000 drill hole
Basalt polypropylene fiber reinforced concrete for durable and sustainable pipe production Part 2 Numerical and parametric analysis Zhiyun Deng Zhiyun Deng School of Civil Engineering Chongqing University Chongqing China National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas Chongqing Chongqing
School of Civil Engineering Chongqing University Chongqing 400045 China 4 Luo D Strength and chloride ion distribution brought by aggregate of basalt fiber reinforced coral aggregate concrete Constr Build Mater 2020 234 117390 [Google Scholar] Zeng Y ; Tang A Comparison of effects of basalt and polyacrylonitrile fibers on
The Boloven bauxite deposit occurs either in the weathered basalt alkali basalt and tholeiite or in the Cretaceous sandstone It is generally agreed that the bauxite deposits/laterites overlying the alkali basalt and tholeiite were derived from weathering of underlying basalt however the origin of bauxite deposit overlying the sandstone remains controversial Chondrite normalized REE
Chongqing Hesheng Longgang Technology Co Ltd is a high tech enterprise integrating R & D production and sales; Production and sales of basalt fiber and its products; Production sales and
Chromium distribution map in deep catchment sediment/alluvial soil samples based on the CGB project data overprinted by the distribution of chromium deposits and ophiolite belts after Hu et al
The crystal size distribution CSD theory since developed by Marsh 1988 1998 has been widely used for Fig 4 a Zoom out and b close up BSE images of quenched Bas11
The magnitude of Cenozoic magmatism is therefore greater than previously thought necessitating a re evaluation of basalt distribution and estimates of eruptive volumes Drill hole data were
The rare earth elements REE distribution pattern of C19 r which is characterized by positive Eu anomalies and M REE enrichment is the same as that of high Ti basalt
However; the distribution of basalt and purple sandstone was more concentrated and the projection distance between the two was farther away along the PCo1 which indicates significant differences in the bacterial species composition The difference in species composition based on the principal components of PCo1 was %
Distribution of Te As Bi Sb and Se in Mid Ocean Ridge Basalt and Komatiites and in Picrites and Basalts from Large Igneous Provinces Implications for the Formation of Magmatic Ni Cu Platinum
The distribution of vesicular structures in Sukadana Basalt East Lampung Indonesia and its significance for the geological structure interpretation July 2024 IOP Conference Series Earth and
The tensile and compressive properties of hybrid basalt‐polypropylene fiber‐reinforced concrete HBPFRC under uniaxial load were investigated in this study
In this study the mobilization redistribution and fractionation of trace and rare earth elements REE during chemical weathering in mid ridge A near mountaintop B and valley C profiles
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