- such as
garnet gneiss,
biotite gneiss,
albite gneiss, and so forth.
Orthogneiss designates a
gneiss derived from an
igneous rock, and
paragneiss is one...
-
Gneiss consists of a
mixture of
orthogneiss and biotite-rich paragneiss. On the
south and
southeast face of K2, the
orthogneiss consists of a
mixture of a...
- The Tres
Piedras Orthogneiss is a
pluton in
northern New Mexico. It has a U-Pb
radiometric age of 1693 Mya,
placing it in the
Statherian period. Though...
-
Banded gneiss with a **** of
granite orthogneiss...
-
tonalite and
granodiorite as the TTG (tonalite–trondhjemite–granodiorite)
orthogneiss suite.
Trondhjemite ****s also
commonly form part of the
sheeted ****...
-
presence of a
second homogeneous body of
orthogneiss further east
within the Akia terrane, the
Taserssuaq Orthogneiss Complex,
which formed at 2982 Ma and...
-
geologically very
young and very old materials.
Common rock
types are
orthogneiss, granite,
metavolcanics and
metasedimentary rocks. On top of
these lies...
-
protolith (para-, such as paraschist) or
igneous protolith (ortho-, such as
orthogneiss). When
nothing is
known about the protolith, the
textural name is used...
-
Mississippian Estivaux granite and two
Ordovician granitoids, the Saut-du-Saumon
orthogneiss and the
Corgnac granite. The Puy-des-Âges
quartzite on top is a very...
- foreland, an old
sedimentary basin that
hosts hydrocarbon reserves.
Orthogneiss dated at 525
million years is
known to
underlie some of the oil wells...
