 A rock made up of flattish particles arranged in rough parallelism, some or all of which have crystallized under pressure. SCHISTOSITY. The quality of being like a schist. SEAM. Quarrymen's term for joint. SECONDARY MINERALS. Minerals whose presence is...  The Granites of Vermont - Seite 132von Thomas Nelson Dale - 1909 - 138 SeitenVollansicht - Über dieses Buch
 | 1907 - 1026 Seiten
...greatly facilitates quarrying. (See p. li<! and fig. 28.) SAI.T-HOBSE. Quarrymen's term for aplite. SAP. Quarrymen's term for ferruginous discoloration...collection of material separated from other material. SEKICITE. A more or less fibrous form of muscovite (i«>tash mica), often resulting from the alteration... | |
 | Geological Survey (U.S.) - 1907 - 244 Seiten
...which greatly facilitates quarrying. (See p. 26 and fig. 28.) SALT-HORSE. Quarrymen's term for apiite. SAP. Quarrymen's term for ferruginous discoloration...collection of material separated from other material. SERICITE. A more or less fibrous form of muscovite (potash mica), often resulting from the alteration... | |
 | Benjamin Kendall Emerson, Joseph Hartshorn Perry - 1907 - 700 Seiten
...under pressure. SCHISTOSITY. The quality of being like a schist. SEAM. Quarrymen's term for j«int. SECONDARY MINERALS. Minerals whose presence Is due...collection of material separated from other material. SERICITE. A more or less fibrous form of muscovite (potash mica), often resultIng from the alteration... | |
 | Geological Survey (U.S.) - 1908 - 270 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...of material separated from other material. A VEIN or SEGREGATION is one formed by the filling of a fissure with mineral matter originating in the surrounding... | |
 | Geological Survey (U.S.) - 1908 - 1020 Seiten
...term for joint. SECONDARY MINERALS. Minerals whose presence is due to the alteration of the orisrinal minerals. SEDIMENTARY. A term designating those rocks...of material separated from other material. A VEIN OP SEGREGATION is one formed by the filling of a fissure with mineral matter originating in the surrounding... | |
 | United States. Bureau of Public Roads - 1908 - 772 Seiten
...minerals which are derived partially or completely from the alteration of other minerals in the rock. Sedimentary. — A term designating those rocks that consist of particles deposited under water. Usually they show a bedded structure. Shale. — A bedded rock formed by the consolidation of muds,... | |
 | Vermont. State Geologist - 1910 - 576 Seiten
...SCHIST. A rock made up of flatfish particles arranged in rough parallelism, some or all of which liave crystallized under pressure. SCHISTOSITY. The quality...from other material. A vein of segregation is one fromed by the filling of a fissure with mineral matter originating in the surrounding rock. SERICITK.... | |
 | Vermont. State Geologist - 1910 - 572 Seiten
...arranged in rough parallelism, some or all of which have crystallized under pressure. Sen ISTOSITY. The quality of being like a schist. SEAM. Quarrymen's...from other material. A vein of segregation is one fromed by the filling of a fissure with mineral matter originating in the surrounding rock. SERICITE.... | |
 | Vermont. State Geologist - 1910 - 632 Seiten
...is due to the alteration of the original minerals. SEDIMENTARY. A term designating those rocks tliat consist of particles deposited under water. SEGREGATION....from other material. A vein of segregation is one fromed by the filling of a fissure with mineral mutter originating in the surrounding rock. SERICITE.... | |
 | Thomas Nelson Dale, Herbert Ernest Gregory - 1911 - 698 Seiten
...have crystallized under pressure. SCHISTOSITY. The quality of being like a schist. SEAM. Qiiiirrymen's term for joint. SECONDARY MINERALS. Minerals whose...mineral matter originating in the surrounding rock. SEBICITE. A more or less fibrous form of muscovite (potash mica), often resulting from the alteration... | |
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