QUARTZ AS A RECORD OF MAGMATIC THERMAL HISTORIES: A CASE STUDY FROM THE TUOLUMNE INTRUSIVE SUITE

2019 ◽  
Author(s):  
Michael R. Ackerson ◽  
Keyword(s):  
Thermal Histories ◽  
Tuolumne Intrusive Suite ◽  
Intrusive Suite

A GEOCHEMICAL METHOD FOR ASSESSMENT OF THE THERMAL HISTORIES OF SEDIMENTS: A TWO-WELL CASE STUDY FROM THE GIPPSLAND BASIN, AUSTRALIA

1991 ◽  
Vol 31 (1) ◽  
pp. 325 ◽  
Author(s):  
R. Alexander ◽  
P.G. Kralert ◽  
R. Marzi ◽  
R.I. Kagi ◽  
E J. Evans
Keyword(s):  
Heat Flow ◽  
Stable Phase ◽  
Carbon Preference Index ◽  
Preference Index ◽  
History Of ◽  
Thermal Histories ◽  
Gippsland Basin ◽  
Geochemical Method ◽  
Kinetics Of

The ester content in kerogen is depleted as sediment maturation progresses in a process which has been shown to correlate with change in the carbon preference index (CPI) of the associated soluble organic matter. We have carried out accurate laboratory measurements of the kinetics of the reaction which causes ester depletion in sediments, and we show how this information can be used to assess the thermal history of sediments. Two wells were selected, Grunter-1 and Volador-1, to provide samples from the Latrobe Group in the Gippsland Basin. The CPI values were measured to assess the extent of reaction at points down each well, and these values were then used with the kinetic parameters for the ester depletion process to obtain thermal histories which are consistent with the available maturity information.This treatment enabled the heat flow from 50 Ma to the present to be assessed and it suggests that at both locations a constant low heat flow during the Gippsland stable phase was followed by a gradual increase from the beginning of the Miocene to present-day values.

Isotopic variation in the Tuolumne Intrusive Suite, central Sierra Nevada, California

1986 ◽  
Vol 94 (2) ◽  
pp. 205-220 ◽  
Author(s):  
R. W. Kistler ◽  
B. W. Chappell ◽  
D. L. Peck ◽  
P. C. Bateman
Keyword(s):  
Sierra Nevada ◽  
Isotopic Variation ◽  
Tuolumne Intrusive Suite ◽  
Intrusive Suite

Magmatic structures in the Tuolumne Intrusive Suite, California: a new model for the formation and deformation of ladder dikes

2012 ◽  
Vol 164 (4) ◽  
pp. 587-600 ◽  
Author(s):  
Kirsten F. Hodge ◽  
Guillaume Carazzo ◽  
Xena Montague ◽  
A. Mark Jellinek
Keyword(s):  
New Model ◽  
Tuolumne Intrusive Suite ◽  
Intrusive Suite
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