PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2009-11-15 NOTE = "Sample description" END_OBJECT = TEXT END High-level Description: Chunky, angular palagonitic clast-rich non-layered "vein" of ash cuts across ash layers, in the northeast wall of Fort Rock Tuff Ring. Deposit is comprised primarily of tan ash, with light and dark gray to black lithics interspersed. Texture Grain morphology and appearance: Very angular fine ash with very angular/angular lithics intermixed. Grain size and sorting: Fine ash (<=0.05 mm) supports lithics 1 mm-1 cm in diameter. Grain fabric: Random orientation; unimodal. Sediment structure: None Color: Tan ash with black/grey lithics