Results 41 to 50 of about 724,346 (300)

First discovery of gold in kimberlite in Xuzhou, Northern Jiangsu Province

open access: yesSolid Earth Sciences, 2021
Several individual particle native golds were observed in two Mesozoic Group II kimberlites dikes in the southeastern margin of North China Craton (NCC).
Qi Hou   +5 more
doaj  

Alternatives of «shale scenario» of development of the Russian fuel and energy complex on the basis of the deep oil paradigm of petroleum geology

open access: yesГеофизический журнал, 2018
The condition and ways of the decision of the basic problems of modern petroleum geology in the field of recovery of resources of hydrocarbon and searches of oil and gas fields are discussed.
A. I. Timurziev
doaj   +1 more source

GeoPS: An interactive visual computing tool for thermodynamic modelling of phase equilibria

open access: yesJournal of Metamorphic Geology, 2021
The availability of thermodynamic data for geologically relevant phases has made practical the calculation of stable phase relations throughout the mantle and crust of terrestrial planets.
Hua Xiang, J. Connolly
semanticscholar   +1 more source

Geochronology, geochemistry and Hf–Sr–Nd isotopes of the ore-bearing syenite from the Shapinggou porphyry Mo deposit, East Qinling-Dabie orogenic belt

open access: yesSolid Earth Sciences, 2016
The Shapinggou Mo deposit is located in the western Dabie mountains, the eastern part of the Qinling-Dabie molybdenum orogenic belt. Shapinggou Mo deposit is a concealed deposit with the ore body mainly hosted by explosive breccia of Gaijing and the ...
Tao He   +6 more
doaj   +1 more source

The Caribbean Region

open access: yesTrouillot Remixed, 2021
The result of a major international effort involving authors and organizations from 13 countries, this volume summarizes the complex geology and tectonic evolution of the Caribbean plate and its relation to the adjacent North American, South American ...
G. Dengo, J. E. Case
semanticscholar   +1 more source

Evolution Mechanism of Macromolecular Structure in Coal during Heat Treatment: Based on FTIR and XRD In Situ Analysis Techniques

open access: yesJournal of Spectroscopy, 2019
Owing to the complexity and heterogeneity of coal during pyrolysis, the ex situ analytical techniques cannot accurately reflect the real coal pyrolysis process.
Dun Wu, Wenyong Zhang
doaj   +1 more source

Karakteristik Unsur Jejak Dalam Diskriminasi Magmatisme Granitoid Pulau Bangka [PDF]

open access: yesEksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, 2015
Geology of Bangka Island consists by variation of granite as Klabat Granitoid scattered in various locations. Trace elements can be applied in magmatism discrimination of granitoid.The purpose of this study was to determine the characteristics Bangka ...
Kurnia Setiawan Widana, Bambang Priadi
doaj   +1 more source

Neoarchean Arc Magmatism and Crust Recycling in the Northern Marginal Zone of the Limpopo Complex, Zimbabwe: New Insights From Zircon U‐Pb‐Hf Isotopes of a Charnockite Suite

open access: yesGeological Journal, EarlyView.
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae   +6 more
wiley   +1 more source

High‐Titanium Zircon Rims in Rhyolite – A Reflection of Adiabatic Ascent?

open access: yesGeological Journal, EarlyView.
The ascent of granitic magma from source to emplacement is rapidly achieved through dyking, resulting in negligible heat loss to the surrounding wallrock (i.e., adiabatic). Zircon growth during ascent can record the changing magma conditions including adiabatic cooling and heating, resulting in high titanium rims on low titanium cores without ...
Carson Kinney   +2 more
wiley   +1 more source

Mineralogical evolution of the northern Bossoroca ophiolite, São Gabriel terrane

open access: yesBrazilian Journal of Geology, 2020
Mineralogical evolution of ophiolites is significant to understand paleo-oceanic crust and mantle requiring multi-proxy techniques to identify steps in the processes. We studied the Bossoroca ophiolite from the southern Brasiliano Orogen, a prime example
Amanda Juliano Massuda   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy