 SERICITE. A more or less fibrous form of muscovite (potash mica), often resulting from the alteration of feldspar. SHAKES. Quarrymen's term to designate a somewhat minute close-joint structure, which forms along the sheet surface as a result of weathering.  Bulletin of the United States Geological Survey - Seite 132von Geological Survey (U.S.) - 1909Vollansicht - Über dieses Buch
 | 1907 - 1026 Seiten
...material separated from other material. SEKICITE. A more or less fibrous form of muscovite (i«>tash mica), often resulting from the alteration of feldspar....along the sheet surface as a result of weathering. (Seep. 40.) SHEET QUABRY. A qunrry in which the granite lies In sheets, crossed by widespaced steep... | |
 | Thomas Nelson Dale - 1907 - 240 Seiten
...SEGREGATION. The scientific term for " knot ;" a collection of material separated from other material. SERICITE. A more or less fibrous form of muscovite...along the sheet surface as a result of weathering. (Seep. 40.) SHEET QUARRY. A quarry in which the granite lies in sheets, crossed by widespaced steep... | |
 | Benjamin Kendall Emerson, Joseph Hartshorn Perry - 1907 - 700 Seiten
...SEGREGATION. The scientific term for " knot ;" a collection of material separated from other material. SERICITE. A more or less fibrous form of muscovite...along the sheet surface as a result of weathering. (Seep. 40.) SHKET QUARRY. A quarry in which the granite lies in. sheets, crossed by widespaced steep... | |
 | Thomas Nelson Dale - 1908 - 250 Seiten
...veins or dikes of muscovite (white mica) with some quartz, in cases also with feldspar. (See p. 51.) SAND STREAKS. Same as sand seams. SAP. Quarrymen's...quarry in which the granite lies in sheets, crossed hy wide-spaced steep joints. SLICKENSIDES. The polished and grooved faces of a joint or bed caused... | |
 | Vermont. State Geologist - 1910 - 576 Seiten
...fromed by the filling of a fissure with mineral matter originating in the surrounding rock. SERICITK. A more or less fibrous form of muscovite (potash mica),...resulting from the alteration of feldspar. SHAKES. Quarrvmen's term to designate a somewhat minute close-joint structure, which forms along the sheet... | |
 | Thomas Nelson Dale, Herbert Ernest Gregory - 1911 - 698 Seiten
...formed by the filling of a fissure with mineral matter originating in the surrounding rock. SEBICITE. A more or less fibrous form of muscovite (potash mica),...a result of weathering. SHEET QUARRY. A quarry in whlclj the granite lies iu sheets, crossed by widespaced steep joints. SLICKENSIDES. The polished and... | |
 | 1907 - 1200 Seiten
...SEGREGATION. The scientific term for "knot;" a collection of material separated from other material. SEBICITE. A more or less fibrous form of muscovite (potash mica),...along the sheet surface as a result of weathering. (Seep. 40.) SHKET QUARRY. A quarry in which the granite lies in sheets, crossed by widespaced steep... | |
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