However, the short distances to ore predicted northeast of Furotobe, just off the figure, coincide with the location of the Nurukawa kuroko deposit and the Omaki deposit, south of the Shakanai-Hanaoka deposits, seems to be on an extension of short distance to ore contour, but is beyond ...
Gas compositions of fluid inclusions from the Nurukawa kuroko deposit of north Japan and the Myojinsho and Kita-Bayonnaise submarine sulfide deposits of the Izu-Ogasawara Arc, northwestern Pacific, are reported. The Nurukawa deposit was formed in a back-arc depression near a Tertiary volcanic fron...
Tertiary volcanic rocks surrounding the ore deposits at Kosaka have uniformδ18O values, +8.1±1.0‰ (n=50), although their bulk chemical compositions are widely varied because of different degrees of alteration. “White Rhyolite”, which is an intensely altered rhyolite occurring in close associati...
川西呷村超大黑矿型矿床成矿流体稀土元素组成 Composition characteristics of rare earth elements in metallogenetic fluid of the Gacun superlarge Kuroko-type deposit44阅读 文档大小:195.86K 6页 355687上传于2015-06-26 格式:PDF THORIUM RESOURCES IN RARE EARTH ELEMENTS:稀土元素钍资源 热度: Bioleaching ...
网络黑矿型 网络释义 1. 黑矿型 (1)黑矿型(Kuroko-type),产于长英质火山岩中,形成于弧后扩张环境;(2)Cyprus型,赋矿岩系主要为蛇绿岩套的铁镁 … baike.baidu.com|基于3个网页
Abstract. Kuroko deposits are a representative volcanic-hosted massive sulfide deposit and the Hokuroku district is economically the most important Kuroko containing province in Japan. There are two cycles of the bimodal volcanic sequence in the Hokuroku district. The pre-ore volcanism started with ...
kuroko deposithydrocarbon depositGreen TuffNiigata oil fieldAkita oil fieldhydrothermal originmagmatic originNorthern Honshu is the most important area for mineral and oil resources in Japan. Many kuroko deposits and oil and gas fields are distributed in two belts along the northeast Japan arc, the ...
Slight increase in fugacities of oxygen and sulfur, and decrease in temperature took place during the formation of a deposit. Regional zoning of the assemblage of alteration minerals, therefore, corresponds to slight differences in the processes of ore formation during deposition....
(1990). Opening of the Sea of Japan and Kuroko Deposit Formation. Mineralium Deposita 25: 140 – 145.Horikoshi, E. (1990) Opening of the Sea of Japan and Kuroko deposit formation. Mineral. Deposita 25, 140-145.E. Horikoshi.  Opening of the Sea of Japan and Kuroko deposit ...
Kuroko DepositMireral ExplorationMultiple RegressionGISGravity Anomaly DataAero-magnetic DataIn order to extract promising areas of mineral resources, many studies have used stochastic or statistical methods such as weight of evidence, fuzzy logic and neural network. With the development of computers, ...