 | | Report (volume) | | ...................................... . In amphibolite. ...................... r ............................. 85 35 Corundum (emery) in amphibolite at Chester, Mass...........' . In anorthosite --...-........................... Origin of emery in amphibolite at Chester, Mass.................. * 81 86 92...corundum localities in the United States. ....... II. Outcrop of peridotite at Buck Creek, Clay County, N. C...peridotite area, showing the relation of the amphibolite dikes...........................-.--.......--- |  | | Report (Issue volume) | | perthite and rose quartz from Ontario; and agate, chalcedony and jasper from various localities in British...occurrences of soapstone in the area include: one outcrop of medium-grained blotchy green and grey soapstone...soapstone on the southeast shore of Mile Lake; another outcrop of a coarse-grained greenish soapstone on the northwest...in a dyke cutting chloritic mica schist and amphibolite at the Lun-Echo Gold Mines property. Black tourmaline...streaked with red occur in an ellipsoidal andesite outcrop on a thinly forested rocky knoll 1 mile north of |  | | Report (volume) | | Elf amphibole-peridotite. Elf troctolite. Elf amphibolite. Elf gabbro. Shooting Creek dunite. Thumping...olivine-gabbro. Corrosion mantles—troctolite . Buck Creek amphibolite. Corundum Hill area. Corundum Hill dunite. Corundum...dunite. French Broad serpentine. Mica-diorite and amphibolite near Marshall. Peridosteatite at the Madison...igneous rocks . In peridotite . In pyroxenite . In amphibolite . 162 164 168 170 170 171 174 174 175 175 177...Other sulphides . 274 Oxides . 275 Quartz . 275 Chalcedony . 275 Opal . 275 Hematite . 276 Ilmenite or menaccanite |  | | Report (volume) | | Corundum in amphibolite ................................. ........ 21 Corundum (emery) in amphibolite at Chester... 89 91 91 91 ILLUSTRATIONS. Page. PLATE I. Outcrop of peridotite at Buck Creek, Clay County, N. C...peridotite area, showing the relation of the amphibolite dikes........ ............. ..... .............Ideal vertical cross section of corundum in amphibolite at Hunters, Iredell County, N.C.......: .......some BULLETIN NO. 180 U. S. GEOLOGICAL SURVEY OUTCROP OF PERIDOTITE AT BUCK CREEK, CLAY COUNTY, N. C |  | | Journal (issue) | | Glasgow, Hull, Liverpool, Newcastle, Belgium, France, Canada, Germany, Holland, Italy, Sweden, Switzerland...of Metamorphic Outcrop Plate III Fort Clarence Road, S. end of Meta1norphic Outcrop Plate IV Port...Forresteria (Harleites) harlei (de Groosouvre) Text-fig. la Whorl Section of Onitslwccrasmatsumotoisp. nov. ...b)' wllitc marl; 1raYcrtinc limcsLOnc forms the outcrop al the road bend; the fault is beyond the bend...To tfH· right, it arrhes over the metamorphic outcrop; LO thl' left. iL c-ontinu,·s obliquely down the |  | | Report (issue) | | resulting in trends ranging between NNW and NNE and amphibolite-facies metamorphism imposed on 1 , 2, 3, 4, and...4 3 Deformation resulting in E-W trends and amphibolite-grade metamorphism imposed on 1 and 2 2 Deposition...has been differentiated. Metamorphism was of amphibolite facies grade and the episode terminated with...axial planar fabric. Metamorphism was in the amphibolite facies. A second deformation phase resulted in...strip up to 40 km in width it conforms with the outcrop of the unconsolidated Bullom Group sediments (Hall |
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