J
John T. Cheney
Researcher at Amherst College
Publications - 28
Citations - 1922
John T. Cheney is an academic researcher from Amherst College. The author has contributed to research in topics: Metamorphism & Metamorphic rock. The author has an hindex of 16, co-authored 26 publications receiving 1814 citations.
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Journal ArticleDOI
P -T paths from anatectic pelites
TL;DR: In this paper, a relatively simple petrogenetic grid for partial melting of pelitic rocks in the NCKFMASH system is presented based on the assumption that the only H2O available for melting is through dehydration reactions.
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A petrogenetic grid for pelitic schists in the system SiO 2 -Al 2 O 3 -FeO-MgO-K 2 O-H 2 O
Frank S. Spear,John T. Cheney +1 more
TL;DR: In this paper, a quantitative petrogenetic grid for pelitic schists in the system KFMASH that includes the phases garnet, chlorite, biotite, chloritoid, cordierite, staurolite, talc, kyanite, andalusite, sillimanite, pyrophyllite (with quartz, H2O and muscovite or K-feldspar in excess) is presented.
Journal ArticleDOI
On the loss of 40Ar∗ from muscovite during polymetamorphism
Willis E. Hames,John T. Cheney +1 more
TL;DR: In this article, it was shown that muscovite is far less prone to lose accumulated 40Ar via lattice diffusion during overprinting events than has been inferred previously.
Journal ArticleDOI
Thermodynamic modelling of the reaction muscovite+cordierite→Al2SiO5+biotite+quartz+ H2O: constraints from natural assemblages and implications for the metapelitic petrogenetic grid
TL;DR: In this article, the authors proposed a low pressure metapelitic petrogenetic grid in the system K2O-FeO-MgO-Al2O3-SiO2-H2O (KFMASH) which satisfies most of the natural and experimental constraints.
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Glaucophane-bearing Marbles on Syros, Greece
TL;DR: In this article, the authors show that deformation and recrystallization occurred at or near the thermal maximum of metamorphism for these rocks to about 5008C and 15^16 kbar.