Results 101 to 110 of about 19,778 (275)

Plagioclase-Garnet-Epidote Equilibria in Hornblende-Plagioclase Bearing Rocks from the Esplanade Range, British Columbia

, 1972
Hornblende-plagioclase bearing rocks occur as layers and lenses within metasedimentary rocks of the Esplanade Range, British Columbia (51°31′ N, 117°27′ W).
C. D. S. DeVries, Edward D. Ghent
core   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

(Table 5) Partition coefficients and inferred parent magma composition of plagioclase from OPD Hole 183-1137A Unit 10 basalts

, 2009
(Table 5) Partition coefficients and inferred parent magma composition of plagioclase from OPD Hole 183-1137A Unit 10 ...
Neal, Clive R, William S Kinman (6973790), Clive R Neal (6968849), Jon P Davidson (6973793), Font, Laura, Kinman, William S, Davidson, Jon P, Laura Font (567207)   +7 more
core   +1 more source

Polymict melt‐bearing breccia dikes in the Morokweng impact structure formed by slip‐induced mechanical mixing of pseudotachylite and cataclasite along large‐displacement impact faults

Meteoritics &Planetary Science, EarlyView.
Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson, S'lindile S. Wela, Leonidas C. Vonopartis, Marco A. G. Andreoli   +3 more
wiley   +1 more source

plagioclase phase diagram

, 2016
Proposed equilibrium phase diagram for plagioclase as low ...
Carpenter, M. A.
core  

Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil

Meteoritics &Planetary Science, EarlyView.
Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta, Neivaldo Araújo de Castro, Marcos Alberto Rodrigues Vasconcelos, Airton Natanael Coelho Dias, Ludovic Ferrière, Wolf Uwe Reimold, Ana Maria Góes, Jackson Alves Martins, Liliana Sayuri Osako, Raimundo Mariano Gomes Castelo Branco   +9 more
wiley   +1 more source

(Table 1) Geochemistry of large-zone plagioclase phenocrysts in ODP Hole 135-841B Miocene andesite Unit 1A

, 1994
(Table 1) Geochemistry of large-zone plagioclase phenocrysts in ODP Hole 135-841B Miocene andesite Unit ...
Bryan, Wilfred B, Wilfred B Bryan (6886991), Pearce, Thomas H, Thomas H Pearce (6959252)   +3 more
core   +1 more source

Revisiting the Hummeln structure, Sweden—A shallow marine Cambrian impact structure

Meteoritics &Planetary Science, EarlyView.
Abstract Hummeln is a simple impact structure located in south‐eastern Sweden. It is approximately 1.2 km in diameter and almost completely covered by a lake. Here, we present the first detailed investigation of impactites and mapping of the 164.25 m deep drill core Hummeln‐1 with a focus on impact metamorphism and the impact process.
S. Alwmark, J. Granbom, P. Ahlberg, M. Calner, S. Richoz, K. J. Gajewska, W. R. Hyde, K. Ljung, C. Alwmark   +8 more
wiley   +1 more source

Thermoluminescence Properties of Plagioclase Mineral and Modelling of TL Glow Curves with Artificial Neural Networks

Applied Sciences
The thermoluminescence (TL) method is one of the most widely used techniques in various studies, including dosimetric applications, dating of archaeological and geological materials, luminescence spectroscopy of certain insulating or semiconducting ...
Mehmet Yüksel, Emre Ünsal
doaj   +1 more source

(Table 4) Partition coefficients and inferred parent magma composition of plagioclase from OPD Hole 183-1137A Unit 4 basalts

, 2009
(Table 4) Partition coefficients and inferred parent magma composition of plagioclase from OPD Hole 183-1137A Unit 4 ...
Neal, Clive R, William S Kinman (6973790), Clive R Neal (6968849), Jon P Davidson (6973793), Font, Laura, Kinman, William S, Davidson, Jon P, Laura Font (567207)   +7 more
core   +1 more source