Bedded chert, SW MontanaAugust 31, 2017/in /by Marli Miller sedimentary, tilted, radiolarian, BMMT, strata https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-08-31 21:45:392021-11-22 10:37:19Bedded chert, SW Montana