of Fe- and Al-rich graphitic metapelites in the Transangarian region of the Yenisei Ridge, eastern Siberia, Russia.
It has been proven that C[O.sub.2] of Earth's crust derived from stratal carbonate pyrolysis generating inorganic C[O.sub.2], which are influenced by contact metamorphism
of carbonates and dynamic metamorphism of fault activities .
This research points to heat from the molten rock affecting other sediment in a process called contact metamorphism
, "likely liberating the massive greenhouse gas volumes needed to drive extinction." Those greenhouse gases would have sent carbon into the ocean and raised sea temperatures, which would account for the huge impact on marine life during the mass extinction 252 million years ago - known as the end-Permian event, because of its occurrence at the end of the Permian geological period, or as the Great Dying.
(2003): Anomalous reverse zoning of saponite and corrensite caused by contact metamorphism
and hydrotermal alteration of marly rocks associated with subvolcanic bodies.
The humite-group minerals have a limited paragenesis and occurs in marbles and skarns generated by contact metamorphism
. However, they may also form in rocks affected by metasomatic processes linked to the regional metamorphism or hydrothermal alteration.
of the Halifax Formation on the southeastern margin of the Halifax Pluton, Halifax, Nova Scotia.
(1983) as a partial resetting of fission-track ages by contact metamorphism
during emplacement of the Hunza Batholith (106-95 Ma, U-Pb zircon age) and also by subsequent Eocene regional metamorphism at the time of the Indo-Eurasian collision.
Many coalbed methane (CBM) basins such as the Raton and San Juanbasins in the USA, the Gunnedah Basin in Australia, and the Qinshui and Fuxin basins in China have undergone contact metamorphism
or thermal maturation directly or indirectly related to igneous intrusions [1-3].
Massive magnetite (magnetite-quartz rock) is spatially related to remobilisation by contact metamorphism
close to granite / pegmatite intrusives;