Results 51 to 60 of about 14,392 (168)

Geochemical Characteristics and Paleoenvironmental Reconstruction of the Cretaceous Qingshankou Formation Shales in the Southeastern Uplift of the Songliao Basin: A Case Study from the Niaohexiang Section of Binxian, China

Applied Sciences
The Qingshankou Formation shales in the southeastern uplift of the Songliao Basin provide an ideal archive for constraining the controls of paleoenvironment on organic matter enrichment.
Yangxin Su, Xiuli Fu, Hongjun Shao, Qinghai Xu, Kun Wang, Qiang Zheng   +5 more
doaj   +1 more source

Sedimentological and geochemical characteristics of a fluvial

, 2014
A sedimentological and geochemical study was performed on the travertines in the southern part of the Usak geothermal field, western Turkey, to assess the applicability of a fluvial tufa facies model in interpreting late Quaternary travertine deposits developed along the stream valleys that follow fault and fracture systems.
Ozkul, M, Gokgoz, A, Kele, S, Baykara, MO, Shen, CC, Chang, YW, Kaya, A, Hancer, M, Aratman, C, Akin, T, Orus, Z   +10 more
openaire   +2 more sources

Origin of Color and Spectral Characteristics of Nanhong Agate from Northeast Yunnan, China

Crystals
Nanhong agate has attracted public attention as the most distinctive gemstone in China. Owing to the limited data on Nanhong agates from a new production area in northeastern Yunnan, this paper presents the first data from gemological studies on these ...
Qiuyun Song, Liurunxuan Chen, Ruohan Zuo, Xianchao Chen, Sugang Sui, Wenzhou Pu, Xiaoqi Yang, Shitao Zhang, Wenlian Liu   +8 more
doaj   +1 more source

Application of X-ray Fluorescence Spectrometry and Inductively Coupled Plasma-Mass Spectrometry in the Geochemical Study of Rare Metal Deposits in Chuan-ziyuan Area, Hunan Province

Yankuang ceshi, 2015
X-ray Fluorescence Spectrometry (XRF) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) were used to obtain the geochemical data of podumene pegmatite, albite pegmatite and potash feldspar pegmatite in the Chuan-ziyuan area.
WEN Chun-hua, LUO Xiao-ya, LI Sheng-miao, LI Jian-kang   +3 more
doaj   +1 more source

Survey of geochemical characteristics of bottled waters in Iran using coordinates and ionic ratios

سلامت و محیط, 2017
Background and Objective: Bottled water consumption is rapidly increasing in recent years for various reasons.The main aim of this study was to survey the geological origin of Iranian bottled water and determine compliance or lack of compliance with the ...
M Heydari, R Nabizadeh Nodehi, M Ali Mohammadi, K Yaghmaeian   +3 more
doaj  

Geochemical Characteristics and Origin of Natural Gas in the Middle of Shuntuoguole Low Uplift, Tarim Basin: Evidence from Natural Gas Composition and Isotopes

Energies
Multiple types of reservoirs, including volatile oil reservoirs, condensate gas reservoirs, and dry gas reservoirs, have been discovered in ultra-deep layers buried at depths greater than 7500 m.
Hui Long, Jianhui Zeng, Yazhou Liu, Chuanming Li   +3 more
doaj   +1 more source

Geological features and geochemical characteristics of Late

, 2016
Newly discovered K-bentonite beds, interstratified with limestones/dolomitic limestones of the Upper Devonian-Lower Carboniferous Yilanli Formation, are exposed in the northwestern Black Sea region of Turkey, around Zonguldak and Bartin. K-bentonite samples collected from four different locations: the Gavurpinari and Yilanli Burnu quarries from the ...
Goncuoglu, MC, Gunal-Turkmenoglu, A, Bozkaya, O, Unluce-Yucel, O, Okuyucu, C, Yilmaz, IO   +5 more
openaire   +1 more source

GEOCHEMICAL CHARACTERISTICS OF SABALAN VOLCANIC ROCKS IN NORTHWESTERN IRAN​

Bulletin Of The Mineral Research and Exploration, 2018
Sabalan is a voluminousstratovolcano situated in the northwestern part of Alborz-Azerbaijan zone, 25kmfrom Meshkinshahr. It is separated by tectonic faults from Sarab plain and Meshkinshahr.The composition of Sabalan volcanic rocks ranges from andesite, trachyandesite todacite.
FAHIM GUILANY, Reza, DARVISHZADEH, Ali, SHEIKHZAKARIAEE, Seyed Jamal, VOSOUGHI ABEDINI, Mansour   +3 more
openaire   +3 more sources

Formation Mechanism and Gemological Characteristics of “Yellow-Skinned” Nanhong Agate in Northeastern Yunnan, China: Evidence from Mineralogy and Geochemistry

Crystals
The “yellow-skinned” Nanhong agate represents a unique variety of Nanhong agate found in northeastern Yunnan, China, and it is highly valued for its distinctive yellow exterior and clear red–yellow interface. Owing to the limited research on this variety,
Qiuyun Song, Shitao Zhang, Wenzhou Pu, Liurunxuan Chen, Ruohan Zuo, Xianchao Chen, Dai Zhang, Wenlian Liu   +7 more
doaj   +1 more source

Geochemical characteristics and development models of salinized lacustrine mixed-source rock: a case study of upper member of Lower Ganchaigou Formation in Yingxiongling structural belt, western Qaidam Depression

Shiyou shiyan dizhi
This study aims to systematically evaluate the hydrocarbon generation potential of the saline lacustrine mixed-source rocks in the upper member of the Lower Ganchaigou Formation in the Yingxiongling structural belt of the Western Qaidam Depression in the
Fei ZHOU, Zeyu SHAO, Jing ZHANG, Guo CHEN, Hailong ZHANG, Yaohui XU, Wanxin HAO, Wei SHA, Yunzhao WU, Hao ZHANG   +9 more
doaj   +1 more source