Stratigraphy of Paleozoic rocks in the Carlin-Pinon Range area, Nevada

Abstract

mainly of carbonate and siliceous fragments that range in size from clay to boulders. Thin-bedded calcareous fine-grained sandstone to siltstone and fine-grained sandy or silty limestone, which weather to form yellow, tan, and reddish-tan platy fragments, are characteristic rock types in the sequence. Conglomerate beds and lenses and conglomeratic limestone are prominent in parts of the area. As much as 2,000 feet of the lower part of these strata in the northern part of the area are mapped as the Strathearn Formation. Gray limestone in thin-to thick-bedded units is a prominent part of the Strathearn, which also contains platy silty and sandy limestone and conglomerate. Beds above the Strathearn and all the Upper Pennsylvanian and Permian rocks south of the area of recognized Strathearn are not divided. This third sequence of strata ranges in age from Late Pennsylvanian (equivalent to Missourian and Virgilian) to Late Permian(Guadalupian). A4 STRATIGRAPHY OJ-" PALEOZOIC ROCKS. CARLIN-PINON RANGE AREA. NEVADA Eureka