USA Graphite Inc fka USGT

[DITRstocks]

Mesozoic thrusting and recumbent folding probably resulted in deep tectonic burial. Hodges and others (1992) studied petrologic barometry in part of the core complex northeast of the Lamoille Quadrangle, and concluded that Neoproterozoic strata were buried to 35-km depths, probably in Jurassic or Early Cretaceous time. Adjacent to this quadrangle, hornblende barometry on a facies of the biotite monzogranite from upper Lamoille Canyon suggest the depth was still 20–25 km when that unit intruded in late Oligocene time (Snoke and others, 1999).

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