- in
metabasaltic rocks but also
forms in
metasedimentary rocks such as
metachert and
metacarbonate rocks. It also
forms in
rocks that form by metasomatism...
- Headlands, California.
Field of view is
approximately 2 m wide.
Folded blue
metacherts with glaucophane-rich layers,
exposed in
outcrops on
Kayak Beach, Angel...
-
alternating 0.1-to-2-inch-thick (2.5 to 50.8 mm)
layers of
magnetite and
metachert and
varying amounts of amphibole. The
average iron
content in the Atlantic...
-
northwest it is made of
metamorphic rock, with
rocks such as phyllite,
metacherts and greenschist. In the
southeast granitoids,
lavas and
brecciated lavas...
- Metavolcanics, which, in turn, is
overlain by
metagreywacke with
intercalated metacherts of the UT Cr**** Formation. The
northern limb of the
Rattlesnake synform...
-
liquid water in the eoarchean.
Banded Iron
Formations (BIF), with a
minor metachert unit, is an
indicator for
coeval deposition of
aqueous clastic and chemical...
- has lent its name to the 'Asimah Window', an area of
isoclinally folded metacherts formed by
metamorphic events. The
archaeology of the area of Wadi Asimah...
