Results 61 to 70 of about 23,060 (244)

Age of hydrothermal processes in the central iberian zone (Spain) according TO U-Pb dating of cassiterite and apatite

open access: yesЗаписки Горного института, 2017
Results of isotope-geochemical studies by PbLS step-leaching method of cassiterite from greisens located in Logrosán granite massif (Central Iberian Zone, Spain) and apatite from hydrothermal quartz-apatite vein on its exocontact indicate that in both ...
N. G. Rizvanova   +2 more
doaj   +1 more source

Precambrian Research Center Planning Document

open access: yes, 2006
This preliminary business plan for the Precambrian Research Center was created in the spring of 2006 to lay out the vision for the PRC, to explain the rationale for its creation, and to identify its mission, objectives, program components, clientele ...
University of Minnesota Duluth. Precambrian Research Center
core  

Petrogenesis and geochronology of Precambrian granitoid gneisses in Western Liaoning Province: Constraints on Neoarchean to early Paleoproterozoic crustal evolution of the North China Craton

open access: yes, 2012
The North Chaoyang-Fuxin-Yixian granite-greenstone belt (NCFY-GGB) at the northern margin of the Eastern Continental Block of the North China Craton is composed chiefly of metamorphic volcanic and volcano-sedimentary rocks and granitoid gneisses.
Li, Q.   +23 more
core   +1 more source

2015 Precambrian Field Camp

open access: yes, 2015
University of Minnesota Duluth. Precambrian Research Center. (2015). 2015 Precambrian Field Camp.
University of Minnesota Duluth. Precambrian Research Center
core  

High-alumina gneisses of the Chupa Formation in the Belomorian Mobile Belt: metamorphic conditions, partial melting, and the age of migmatites

open access: yesЗаписки Горного института
Migmatized gneisses of the Chupa paragneiss Formation in the Belomorian Mobile Belt (BMB) of the Fennoscandian Shield have been studied, and the conditions of partial melting during high-grade metamorphism of the rocks were determined.
Anastasiya V. Yurchenko   +2 more
doaj  

CHARACTERISTICS OF THE UNIQUE Y-HREE-F-RICH PEGMATITE SYSTEM REVEALED BY ZIRCON GEOCHEMISTRY: A CASE STUDY FROM MT. PLOSKAYA AMAZONITE DEPOSIT, KOLA PENINSULA [PDF]

open access: yesМинералогия
An amazonite-quartz-albite pegmatite body of the Mt. Ploskaya intrudes a metavolcanic complex of the Keivy Terrane (Kola Peninsula) and is unique in its diversity and an assemblage of ore and accessory Y-Yb-Ta-Nb-Be-Pb-F mineralization.
D.R. Zozulya   +3 more
doaj   +1 more source

The Precambrian Earth : tempos and events /

open access: yes, 2004
In this book the editors strive to cover all primary (i.e. non-applied) topics in Precambrian geology in a non-partisan way, by using a large team of international authors to present their datasets and highly divergent viewpoints.
Eriksson, P. G.
core  

The Earth's Greatest Porous Media

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract How deeply does modern meteoric water circulate into the continental crust? How deep is the Earth's Critical Zone (CZ), the top layer of the continental lithosphere that co‐evolves with the atmosphere, hydrosphere, and biosphere, extending from vegetation canopy down to fresh bedrock and the base of active groundwater circulation?
Ying Fan   +3 more
wiley   +1 more source

Organizational Structure of the Precambrian Research Center

open access: yes, 2006
University of Minnesota Duluth. Precambrian Research Center. (2006). Organizational Structure of the Precambrian Research Center.
University of Minnesota Duluth. Precambrian Research Center
core  

Precambrian Research Centre VMS & Gold Short Course 2008 [PDF]

open access: yes, 2008
The field guide for this workshop ("Field Guide to the Volcanology, Structure, Alteration, and Mineralization of Archean Greenstone Belts in the Vicinities of Sturgeon Lake and Rainy River, Ontario and Lake Vermilion, Minnesota") is linked under "Related
University of Minnesota Duluth. Precambrian Research Center   +1 more
core  

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