When You 1  â¦. Know that a bachelor degree is required for your career. 2  Have already earned more than 60 semester college credits or hold at least one associate degree. 3  Know that a graduate or professional degree will be required for your career.
Shale soils are fine-textured and tend to be acidic and low in nutrients â with largeadditions offertilizer, they are farmed. On mountainsides theyoften support mixed forests.Much of the land overlying shale deposits has been ruinedby strip mining, because shale contains Pennsylvaniaâs rich coalbeds.
Composition of Shale. Shale is a rock composed mainly of clay-size mineral grains. These tiny grains are usually clay minerals such as illite, kaolinite, and smectite. Shale usually contains other clay-size mineral particles such as quartz, chert, and feldspar. Other constituents might include organic particles, carbonate minerals, iron oxide minerals, sulfide minerals, and heavy mineral grains.