Results 51 to 60 of about 23,060 (244)

2012 Precambrian Field Camp

, 2012
University of Minnesota Duluth. Precambrian Research Center. (2012). 2012 Precambrian Field Camp.
University of Minnesota Duluth. Precambrian Research Center
core  

Potassium metasomatism of Precambrian paleosols

, 2015
FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOIndependent of substratum composition, ancient regoliths formed by subaerial weathering are characterized by accumulation of K and other alkaline elements.
Alexey A. Novoselov, Carlos Roberto de Souza Filho   +1 more
core   +1 more source

2010 Precambrian Field Camp

, 2010
University of Minnesota Duluth. Precambrian Research Center. (2010). 2010 Precambrian Field Camp.
University of Minnesota Duluth. Precambrian Research Center
core  

Geochemistry of Zircon from Pegmatite-bearing Leucogranites of the Laghman Complex, Nuristan Province, Afghanistan

Russian Journal of Earth Sciences
For the first time, a study was carried out on the geochemistry of zircon (SIMS method, 2 samples, 20 points) from leucogranites of the Laghman complex, located in the pegmatite-bearing (LCT-type) province of Nuristan (Afghanistan).
Levashova Ekaterina Valer'evna, Skublov Sergey, Hamdard Nazifulla, Ivanov Mihail, Stativko Vladislav   +4 more
doaj   +1 more source

THE REFERENCE GAREVKA GRANITE (YENISEI RIDGE, WESTERN MARGIN OF THE SIBERIAN CRATON): THE FINAL ATTEMPT TO VERIFY PALEOPROTEROZOIC Pb/U ISOTOPIC AGE BY M.I. VOLOBUEV

Геодинамика и тектонофизика
The article unravels a confusing history of ideas about the age of the Garevka granite pluton, which is considered as a reference object for the Precambrian of the Yenisei ridge.
A. B. Kuzmichev, M. K. Danukalova
doaj   +1 more source

2014 Precambrian Field Camp

, 2014
University of Minnesota Duluth. Precambrian Research Center. (2014). 2014 Precambrian Field Camp.
University of Minnesota Duluth. Precambrian Research Center
core  

Chemical composition of sandstones and paleogeodynamic reconstructions

Литосфера, 2016
The article analyzes the adequacy of compliance on paleogeodynamic nature of Upper Precambrian sedimentary associations - Bashkir meganticlinorium, Kama-Belaya aulacogene and Uchur-Maya region, received by geological methods and by using discriminant ...
A. V. Maslov, V. N. Podkovyrov, E. Z. Gareev, L. N. Kotova   +3 more
doaj   +2 more sources

Geochemistry of neoprotherosoic organic matter in the southeast of the Siberian platform

Georesursy, 2020
In the Neoproterozoic of the Aldan-Maya depression, the rocks of the Malgin (MF), Tsipanda (TF) and Kumakha (KF) Formations are enriched in organic matter (OM) and can be classified as source rocks. High generation potential is typical for the MF and TF (
Irina D. Timoshina, Lyudmila N. Boldushevskaya   +1 more
doaj   +1 more source

Red to Green: A Lipid Biomarker Record of Tonian-Ediacaran Algae in Siberia. [PDF]

Geobiology
ABSTRACT Multiple lines of evidence point to a major diversification of Eukarya in the late Tonian period, ca. 800–720 Ma ago. Regular steranes, lipid biomarkers primarily sourced from eukaryotes, are first unambiguously reported from multiple sites. Here, we present lipid biomarker stratigraphic records from two drill‐cores from the Lena‐Anabar Basin ...
Rizzo AI, Bekker A, Kuznetsov AB, Ershova VB, Xiong Y, Karlstrom KE, Poulton SW, Love GD.   +7 more
europepmc   +2 more sources

2009 Precambrian Field Camp

, 2009
University of Minnesota Duluth. Precambrian Research Center. (2009). 2009 Precambrian Field Camp.
University of Minnesota Duluth. Precambrian Research Center
core