КНИГИ НА АНГЛИЙСКИЙ ЯЗЫКЕ, ИМЕЮЩЕЕ ОТНОШЕНИЕ К СЛОВУ «PLAGIOCLASE»
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1
Phase Diagrams for Geoscientists: An Atlas of the Earth's ...
7.4 Mixing Properties of Plagioclase The NCAS system contains a number of
divariant equilibria potentially suitable as thermobarometers. Most of them
include coexisting pyroxene and plagioclase and can be calculated if the mixing
...
2
Deformation Mechanisms, Rheology and Tectonics: From ...
recrystallized plagioclase in middle or deep crustal metabasic rocks are rare and
restricted to rocks with very high plagioclase modal abundances such as
anorthosites (Ji et al. 1988). However, as mentioned by other authors (e.g. Brodie
...
D. Gapais, Dr. Jean-Pierre Brun, Peter R. Cobbold, 2005
Ten and eight pairs of coexisting scapolite and plagioclase respectively from the
iron ore deposits at Leveaniemi and Mertainen, northern Sweden (Ekstrom 1972)
show a Ca/(Ca + Na + K) linear relationship. The scapolites vary from Me,, ...
William Alexander Deer, Robert Andrew Howie, 2004
4
Rock-forming Minerals in Thin Section
Na[AISi ,OJ <-» Ca[Al2Si2O„ General features: dependent on the anorthite
content six plagioclase minerals are distinguished (Fig. 174) which can
crystallize either in a high- or a low-temperature form (high- or low anorthite and
high- and ...
Hans Pichler, Cornelia Schmitt-Riegraf, 1997
5
Origin of Igneous Rocks: The Isotopic Evidence
Although Sr2+ is able to replace Ca2+ in plagioclase, the Sr concentration of
plagioclase does not increase 1000 - Q. 800 600 400 200 0.2 0.4 0.6 0.8
Anorthite (mole fraction) in Fig. 1 .9. Variation of the average Sr concentrations of
...
6
New Zealand Journal of Geology and Geophysics
Phenocrysts of zoned plagioclase and minor pale green clinopyroxene.
Microphenocrysts of opaque oxide. Groundmass consists of plagioclase laths,
abundant granules of opaque oxide, and minor clinopyroxene, the latter showing
deuteric ...
7
Large Meteorite Impacts III
In places, they contain fine-grained (<10 μm) plagioclase subgrain mosaics.
Adjacent to pseudotachylitic breccia-bearing fractures, grains may also show
increasing strain (undulose or mosaic extinction, displaced twin lamellae), partial
...
Thomas Kenkmann, Friedrich Hörz, Alexander Deutsch, 2005
8
Intra-oceanic Subduction Systems: Tectonic and Magmatic ...
Samples with Sr/Nd ratios of more than about 20-30 have accumulated
plagioclase; samples with Sr/Nd less than about 20 are silicic, and can be
modelled by fractional removal of plagioclase. The entire range in Sr/Nd and
Al2O3 in the rocks ...
Robert D. Larter, Philip T. Leat, Geological Society of London, 2003
9
Petrologic and Structural History of Tobago, West Indies: A ...
This dike intruded the biotite ± hornblende tonalite unit. Clinopyroxene-phyric
gabbro porphyry ( K- l2): This mafic rock consists of phenocrysts of clinopyroxene
( l-4 mm) in a groundmass of olive-brown hornblende. altered plagioclase. and ...
10
Aspects of the Tectonic Evolution of China
The early prograde assemblage is represented by quartz and rutile inclusions
within the cores of garnet porphyroblasts, and ompha- cite pseudomorphs that
are represented by clinopyroxene + sodic plagioclase (Anio-20) symplectic ...
НОВОСТИ, В КОТОРЫХ ВСТРЕЧАЕТСЯ ТЕРМИН «PLAGIOCLASE»
Здесь показано, как национальная и международная пресса использует термин
plagioclase в контексте приведенных ниже новостных статей.
International Montoro Resources Inc.: Pecors Exploration Update
... wherein primary pyroxene has been replaced by a chlorite-amphibole mixture and the only original modal mineral present is plagioclase. «MarketWatch, Июн 15»
Montoro Intersects Nearly 100 Meters of Sulphide Mineralization at …
... PGeo., and the Company's consulting geologist added: "The sulphides in the second interval were interstitial to the cumulus plagioclase and ... «Marketwired, Апр 15»
Yutu finds Moon still active in old age
And the material anorthosite plagioclase floated because of its low density, forming a solid crust. Elements that are usually incompatible would ... «Xinhua, Апр 15»
VOLCANO WATCH: Comparing Lava Flows
At lower temperatures, below 1150 degrees Celsius (2102 degrees Fahrenheit), the minerals pyroxene and plagioclase also crystallize along ... «Big Island Now, Апр 15»
Geology | Could ants hold the solution to global warming?
From a Hawaiian lava flow, take basalt — a rock rich in olivine and plagioclase, which are two minerals rich in calcium silicate and magnesium ... «Columbus Dispatch, Мар 15»
Yutu Peers Inside the Moon
... 3 team as Loong rock) shows linear, subparallel fractures and very coarse white crystals (probably plagioclase), up to 2 centimeters in length. «Air & Space Magazine, Мар 15»
Geologists Going to Mars?
Sample 76535 is a coarse-grained plutonic rock made up of olivine and plagioclase, with a slow cooling history and formed as a cumulate at ... «Geology for Investors, Фев 15»
B. Ray Hawke, Lunar Geologist
... an indigenous rock composed almost completely of plagioclase feldspar, make up the inner ring of that basin. In addition, we measured the ... «Air & Space Magazine, Янв 15»
What Asteroid 2004 BL86 and Hawaii Have in Common
... where minerals such as olivine, pyroxene and plagioclase on the asteroid's surface have removed or absorbed particular slices of sunlight. «Universe Today, Янв 15»
Theia Resources Exploration update on the Fox and 2 X Fred …
Petrographic work shows micro veinlet's of quartz within a matrix of K-spar with phenocrysts of plagioclase with potassic feldspar rims. Argillic ... «Canada NewsWire, Янв 15»
