Results 81 to 90 of about 123,575 (347)

Tantalum–(niobium–tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta–Nb oxide mineralogy, geochemistry and U–Pb geochronology

open access: yes, 2015
Tantalum, an important metal for high-technology applications, is recovered from oxide minerals that are present as minor constituents in rare-metal granites and granitic rare-element pegmatites. Columbite-group minerals (CGM) account for the majority of
F. Melcher   +7 more
semanticscholar   +1 more source

Stochastic and deterministic processes influencing mountain mire diatom communities across spatial scales

open access: yesEcography, EarlyView.
Understanding how deterministic and stochastic processes influence the shape of microorganism community assembly across different spatial scales is essential for disentangling biodiversity patterns. Mires are nutrient‐poor and heterogeneous wetlands that form isolated habitats supporting highly diverse diatom assemblages, particularly in mountainous ...
Fernanda Gonzalez‐ Saldias   +4 more
wiley   +1 more source

The Rio Dourado Intrusive Suite - 1.88 Ga A-type Granite - Southeastern Amazonian Craton - Mato Grosso - Brazil [PDF]

open access: yesGeologia USP. Série Científica, 2011
The Rio Dourado Intrusive Suite (RDIS) is composed of granitic rocks which are exposed in the southeastern AmazonCraton, Central Amazon Province. These granites intruded into the Paleoproterozoic granites of the Vila Rica IntrusiveSuite.
Márcia Aparecida de Sant’Ana Barros   +6 more
doaj  

Les granites.

open access: yes, 1942
Meynier André. Les granites.. In: Annales de Géographie, t. 51, n°287, 1942. pp.
Meynier, André
core  

Age and geochemistry of the early Mesoproterozoic A-type granites in the southern margin of the North China Craton: Constraints on their petrogenesis and tectonic implications

open access: yes, 2016
A-type granites are a spectrum of especial felsic rocks that are produced commonly within an extensional environment. They are rare before middle Paleoproterozoic but present abundantly since the late Paleoproterozoic, probably indicating a causal change
Deng, Xiaoqin   +2 more
core   +1 more source

The Seepage Characteristics of Single Rough Joint of Granite Based on NMR Technology: A Modified Cubic Law

open access: yesEnergy Science &Engineering, EarlyView.
The low‐field nuclear magnetic resonance (NMR) measurements are applied to investigate the seepage characteristics of the single rough joint. The purpose of this paper is to investigate the seepage characteristics of granite specimens with single‐joint channel under the different roughness, confining pressures and seepage pressures.
Hao Cheng, Xiujie Zhong
wiley   +1 more source

The Granites

open access: yes, 1952
The Settlement and Battery at "The Granites" Gold Mine.Kettle, Ellen.Date:1952 ...

core  

The emplacement and deformation of granitic rocks in a transpressional shear zone: the ox mountains igneous complex [PDF]

open access: yes, 1989
The structural evolution of the Ox Mountains Granodiorite {478±12Ma) during and after its emplacement is described. This pluton has been emplaced within and synchronously with, a major transpressional shear zone which is expressed as a 11km wide belt of ...
McCaffrey, Kenneth J.W., McCaffrey, K.J
core  

Two‐Way Learning Through Evaluation: The Story of an Innovative Australian Aboriginal‐Led Initiative Strengthening Good Governance at the Cultural Interface

open access: yesNew Directions for Evaluation, EarlyView.
ABSTRACT In this article we share our story of using a developmental evaluation approach over seven years to facilitate two‐way learning between Yapa (Warlpiri language for Indigenous people from the Australian Western Desert region) and Kardiya (Warlpiri language for non‐Indigenous people).
Samantha Jayne Togni   +9 more
wiley   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

open access: yesGeological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao   +4 more
wiley   +1 more source

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