EAR 110 1st Edition Lecture 13Outline of Previous Lecture:I. Volcanic domesII. Monitoring volcanoesIII. Depositional environment and sedimentIV. Making SedimentV. Clast SizesVI. Clast ShapesVII. SortingVIII. Factors affecting size, shape, and sortingIX. Common clastic sedimentary rocksX. Sediment to rock processOutline of Current Lecture:I. Rocks formed by chemical reactionsII. Rocks by organismsIII. OtherIV. Sedimentary rock characteristicsV. Common sedimentary rocksVI. Indicators of environmentVII. Resources in sedimentary rocksChapter 7: Sedimentary RocksI. Rocks formed by chemical reactionsa. Rock saltb. LimestoneII. Rocks by organismsa. Corals – limestone with fossilsb. Plants – coalIII. Othera. Gypsumb. Chalk – forminiferac. Dolostoned. Chert – silica rich, diatomsIV. Sedimentary rock characteristicsa. Bedding planesi. Parallel beds – most commonii. Cross bedding – diagonal, shows direction of wind or water currentsV. Common sedimentary rocksa. Conglomeratei. Rounded clasts – forms in river channels, alluvial plain, beachb. SandstoneThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.i. Form in rivers or sand dunesii. If red – cement is iron oxideiii. If tan – formed in low oxygen environmentVI. Indicators of environmenta. Color of rocks i. Red = oxygen rich environmentb. Size, shape, sortingi. Distance from sourcec. Thickness of beddingd. Type of beddinge. Mud cracksf. Types of fossilsVII. Resources in sedimentary rocksa. Groundwaterb. Petroleumc. Coald. Cement from limestonee. Salt f.
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