Page 13 - flint1939

STRATifGRAPHY AND PETROLOGY

MINT CANYON

The lowest member in the series represented in the area
studied is the Mint Canyon. This formation, named by Ke'rl, is

very well exDosed in the northern part of the area. This ex-
posure is in direct proximity to the type locality in Mint

Plate III Mint Canyon formation and the flat

at the head of Plum Canyon

Canyon. The age has been determined as Upper Miocene from the

vertebrate fossils found in the. area by Mazson. Stirton
wishes to place the formation in the Pliocene, but the stra-

ttgraDhy in relation to the overlying, generally acceDted upper-
Miocene Modelo as well as the fossil record formation precludes JfJ

that possibility. Numerous horizons carry vertebrate fossil