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Inorganics

Id Identification Type Name Description Distinguishing Features Tags
61 Lithofacies Tephra Tephra, or volcanic ash, is a mixture of volcanic glass and crystalline grains derived from the same volcanic source. A tephra unit in a core may be predominantly crystalline and coarse-grained at the base, grading upwards to finer, more glassy grains. See volcanic glass for a detailed description and identification; crystalline components can be identified based on their optical mineralogical characteristics. isotropic volcanic-glass
114 Lithofacies Diatomaceous carbonate mud
115 Lithofacies Calcareous silt
116 Lithofacies Organic-rich carbonate mud with pyrite
163 Lithofacies Organic-rich Diatom Ooze Dominantly composed of diatoms and algal organic matter. circular
transparent
colorless
rice-shape
brown
amorphous
164 Lithofacies Peat
165 Lithofacies Turbidite sequence
168 Lithofacies Laminated sulfidic silt
169 Lithofacies Diatom ooze
170 Lithofacies Clay turbidite cap
171 Lithofacies Turbidite
172 Lithofacies Tephra - Glacier Peak G
173 Lithofacies Tephra - Mt. St. Helens J
174 Lithofacies Glacial varves
175 Lithofacies Banded carbonate mud
176 Lithofacies Tephra- Mazama
177 Lithofacies Tephra - Mount Saint Helens
179 Lithofacies Tephra - mafic