- A
framboid is a
micromorphological feature common to
certain sedimentary minerals,
particularly pyrite (FeS2). The
first known use of the term is ascribed...
-
remnants of
blood cells,
because of the
presence of iron, were
actually framboids,
microscopic mineral spheres bearing iron. They
found similar spheres...
-
sometimes forming in
close ****ociation to form raspberry-shaped m****es
called framboids. However,
under certain cir****stances, it can form
anastomosing filaments...
-
evidence for
anoxia appears at the
extinction event,
including small pyrite framboids,
negative δ238U excursions,
negative δ15N excursions,
positive δ82/78Se...
- availability.
Additional evidence for
anoxia during the TJME
comes from
pyrite framboids,
which grow in
anoxic conditions.
Evidence of
anoxia has been discovered...
-
dissolved ferrous iron,
forming very fine
grained and
highly reactive framboid crystals of iron
sulfides such as (pyrite). Up to a point,
warmer temperatures...
-
during the Permian–Tri****ic
transition in Kashmir,
northern India:
pyrite framboid evidence" (2019/1/1) by
Yuangeng Huang, Zhong-Qiang Chen,
Thomas J Algeo...
- crystals,
spheres and spheroids. Sphere(oids) are
multiple sizes unlike CM. "
Framboids" (fr. raspberry-like) are
round clusters of smaller,
round spheroids....
- CO;2. ISSN 0091-7613. Wignall, P. B.; Newton, R. (1998-09-01). "Pyrite
framboid diameter as a
measure of
oxygen deficiency in
ancient mudrocks". American...
-
locally rich in ammonites. Geochemical,
palynological and
mineralogical framboid data show that
dysoxic to
euxinic conditions occurred in an epicontinental...
