This is a geologic sample in one of the Bureau of Economic Geology's three Core Research Centers. Top Depth: 2600 Ft. Bottom Depth: 4400 Ft. lease_name: DOLEYALECK sample_type_name: UNWASHED CUTTINGS sample_category_name: Cuttings formation_name: Unknown formation_age_name: Unknown facility_name: Houston reservoir_name: Unknown operator_name: SPENCE state_name: Texas county_name: Grayson