 | | Report (issue) | | DESCRIPTIVE MINERALOGY OF PENNSYLVANIA 104 Na 2Al 2 Si3 Oi .2H 2 O; SiO 2 47.4, A1 2 O 3 26.8, Na...Na 2 O 16.3, Lenni, Delaware County. Crystals. Eyerman, 1911, 11. Composition: Analysis: Fe 2 O3 CaO...Sp.gr LOCALITIES: Berks County: Birdsboro, and Gickerville; Delaware County: Leiperville, Lenni (druses...colorless crystals), Felton's farm (Chester), and Ward's quarry; Montgomery County: Sumneytown, and Perkiomenville...Philadelphia: Fairmount Park, Frankford, and Rit- enhouse quarry. SCOLECITE CaAl 2 Si3 Oi .3H 2 O MONOCLINIC |  | | Journal (issue) | | country village in the Saucon Valley of Lehigh County, Pa., occurs a vast deposit of zinc blende which...quarries. Two of the holes are worked en tirely on the quarry plan, while the third is worked by underground...minerals, the most at tractive being pyrites, calcite, quartz, oxides of zinc and calamine. The mass...a sulphide of cadmium, has been ob tained in Pennsylvania only in its amorphous variety. It was discov...Fetid quartz is found at Mendenhall's limestone quarry in Pennsbury, Chester County , and the zinc mines |  | | Journal (article/letter/editorial) | | the subjectof a monographby Menden- hall.3 Mendenhall's surveysweremadeon a scaleof I: 25o,ooo, and...greenstone,but not in commercialquantities. Since Mendenhall's field studieswere completed,one vein of bornitc...underlie the more schistoserocks, including quartz, calcite and mica schists,with some thin-beddedlimestone |  | | Book (edition) | | identical substance with calcium carbonate, or calcite, found in the rocks, and in each case is evolved...like cleavage will be constant thus, a mass of calcite under the blow of a hammer will separate into countless...4. 40; 2, 20 f, f-0, axisf0; minus Cinnabar. Calcite. ; this last 169 being complementary to +--...represent different rhombohedrons of the species calcite: A., the rhombohedron 1 (7, 7?, J-; 2; 7>, having...inseparable layers, exceedingly thin, being of oppoSo calcite crystals are sometimes made of twinned Rutile. |  | | Book (edition) | | identical substance with calcium carbonate, or calcite, fouud There is hence nothing in the rocks, and...like cleavage will be constant thus, a mass of calcite under the blow of a hammer will separate into countless...axisfc; -4. 4c; -2, 2c ; -|, fa minus Cinnabar. Calcite. this last being complementary to and the same...represent different rhombohedrons of the species calcite: A, the rhombohedron 1; -5, 4; O, 2; _Z>, f E,...exceedingly thin, being of opposite kinds. So calcite crystals are sometimes made of twinned Rutile. |  | | Book (edition) | | MINERALS, CHESTER. Alphabetically arranged, with their Chemical Composition By Prof. A. H. Chester, Hamilton...identical substance with calcium carbonate, or calcite, found in the rocks, and in each case is evolved...like cleavage will be constaut thus, a mass of calcite under the blow of a hammer will separate into countless...minus series ; —-\ has the vertical Cinnabar. Calcite. 169 H-f, this last being complementary to and...are reversed. Fig. 168, hedrons of the species calcite: B,—\\ (7, — 2; Z>, — f; iS; 4 J., — — HEXAGONAL |  | | Report (issue) | | Steel Company at Heroult, on Pit River, Shasta County, and operated intermittently in 1907, 1908, and... Shasta County; the Gold Valley deposits, Sierra County; the Minaret deposits, Madera County; the Iron...Mountain, and Newberry deposits, San Bernardino County; and the Eagle Mountain deposits, Riverside 219... PART I. County. Of minor importance are the Patamocas or Beegum deposits, Tehama County; the Newtown...deposits, Nevada County; the Hotaling deposit, Placer County; the Detert deposit, Calaveras County; the Mount |  | | Report (volume) | | party it was decided to include a summary of Mendenhall's report in this volume. 1 Mendenhall, W. C.,...Alaska has led to the belief that they are really Pennsylvania!!, and that the Mankomen formation, together...wholly of igneous origin are represented on Mendenhall's map of the Chistochina district. They are the...was originally referred by Schuchert to the Pennsylvania!! and then to the Permian, but was later reassigned...north of Eureka Creek, here correlated with Mendenhall's .Chisna formation and referred to the Carboniferous |  | | Report (volume) | | locality numbers, 1894, 1891, etc., see list of Mendenhall's containing scattered crinoid fossils (p. 26)...will eventually be included in the formation. Mendenhall's section 14 on Eagle Creek (fig. 3) gave a measured...be nearly horizontal in places, contrary to Mendenhall's conclusion, yet it is probable that the contact...weathering to free the fossil from the enclosing calcite crystals or grit has taken place. Fossils were...they came. It seems best, however, to retain Mendenhall's list of fossils from the type Mankomen area |  | | Report (issue) | | ........................... Granite in Seneca Township....................................................................:... Rhyolite in Marcellon Township.................................................Merrimac Township......................^................................ 61 Granite in Sumpter Township........................................ 145 Verona Township....................................................................... 145 Montrose Township........................................................ |  | | Report (volume) | | coal is of high grade, comparing favorably with Pennsylvania bituminous coal, and, as anthracite of good...BASINS, ALASKA. quartz dibrite. Chlorite and calcite form a scanty binding material, and a little leucoxene...whose filling may consist df chalcedony, quartz, calcite, chlorite, or zeolite. A prominent feature of the...localities, but a thin irregular seaming Avith calcite appears to be the most usual form of mineralization...extensively pyritized and veined by quartz and calcite seams. Above the unconformity the strata lie in |  | | Report (issue) | | conspicu ous among them being a pale-greenish quartz-calcite variety, probably an altered sediment, and a metamorphic...present is now largely represented by areas of calcite, chlorite, and magnetite. A green mica is also...of the 5 species collected here, 2 occur in Mendenhall's collec tions. Combining the fauna of 1581 with...it seems warrantable to conclude that all of Mendenhall's section of about 6,500 feet in thick ness lies...the facts together, I think we can state that Mendenhall's 8 lots of fossils and Schrader's lot 1581 are |  | | Report (issue) | | from tidewater. B. L. Johnson also elaborated Mendenhall's mapping of the Crow Creek basin. FIELD WORK...portions of the basins of Rabbit, Campbell, and Chester creeks, most of the basin of Ship Creek, and parts...ALASKA, 1915. The graywackes contain secondary calcite, both as a constituent of the rock mass and in...veinlets consist of an inter'growth of quartz and calcite. At the locality near the head of Knik River already...an intricate network of veinlets of quartz and calcite. In places the graywacke carries scattered grains |  | | Journal (volume) | | Mineral Resources GEOLOGIC BRANCH of Sierra County 7 68 Current Notes 68 SPECIAL ARTICLES 69...classes 1. Mines and mineral resources of a given county or area (describing kind, character, distribution...DISTRICT MINES AND MINERAL RESOURCES OF SIERRA COUNTY By Charles V. Averill, District Mining Engineer...SIERRA COUNTY, WITH REFERENCES TO REPORTS OF STATE MINERALOGIST 50 GEOGRAPHY Sierra County is one of...feet. The Sierra Nevada continues through Plumas County, which adjoins to the north, but ends just beyond |  | | Report (volume) | | paleontologic evidence, to the lower Cretaceous. Mendenhall's description of. the Matanuska series is as follows:«...groundmass of chlorite, magnetite, quartz, and calcite. The character of the original ferromagnesian constituents...with some of the Pennsylvania anthracite. Comparison of Matanuska and Pennsylvania anthracite. Coal.... oAshburner, C. A., Ann. Kept. Geol. Survey Pennsylvania, 1885, p. 313. The coals represented by analyses...building and mine timbering. a Kept. Geol. Survey Pennsylvania, vol. MM, 1879, pp. 144-145. b Martin, G. C |  | | Report (volume) | | Twenty-fifth Infantry, United States Army. Mendenhall's explorations covered areas on the west shore...its head, and thence northward to the Tanana. Mendenhall's account 1 of his explorations includes a description...localities, but a thin irregular seaming with calcite appears to be the most usual form of mineralization...extensively pyritized and veined by quartz and calcite seams. Above the unconformity the strata lie in...largely of irregular granules of dirty-looking calcite, but with these are associated numerous prismatic |  | | Journal (volume) | | limestone on The limethe shores of Jack's Lake in the township of Methuen. stones here dip at a low angle to...northeasterly and southwesterly direction through the township of Wollaston, and that occurring in the southeast...pyrite, molybdenite, and occasionally quartz and calcite, apatite, constitutents. Of have a tendency...measuring two half, having been obtained. The calcite, feet when by two in mica feet present in...represents portions of the original limestone calcite which have survived in grown more coarsely |  | | Report (issue) | | logs, Nevada Test Site and Hot Creek Valley, Nyo County, Nev., by D. L. HealeY------------------------...Iron deposits of the Estes Creek area, Lawrence County, S.Dak., by R. W. BayleY----------------------... limestone deposits in Lanc~ster County, southeastern Pennsylvania, by A. E. Becher and Harold Meisler~Geology...Adobe Range, Elko Hills, and adjacent areas, Elko County, Nev., by K. B. Ketner-- 93 102 105 Paleontology...the White Knob Limestone (Mississippian), Custer County, Idaho, by Betty Skipp and B. L. Mamet-------- |  | | Report (volume) | | Twenty-fifth Infantry, United States Army. Mendenhall's explorations covered areas on the west shore...its head, and thence northward to the Tanana. Mendenhall's account 2 of his explorations includes a general...foliated rocks, cut by numerous veinlets of quartz, calcite, epidote, or other vein minerals. Rarely the vein...quartz, sericite, chlorite, biotite, epidote, and calcite. Iron oxides, apatite, and carbonaceous material...submicroscopic quartz-calcite inclusions. The rocks are cut by quartz-calcite, quartz-albite, and epidote |  | | Report (issue) | | schist of the Doe Run and Avondale region, Chester County, Pa., by E. F. Bliss and A. I. Jonas (published...Contributions to the geology and paleontology of San Juan County, N.Mex.: (P) 1. Stratigraphy of a part of the Chaco·River...The reef-coral fauna of Carrizo Creek, Imperial County, Cal., and its significance, by T. \V. Vaughan...Avondale region, Chester County, Pa ................................ . II. A, Quarry in Shenandoah limestone...limestone, 1! miles southeast of Doe Run, Chester County, Pa.; B, Secondary folds on limb of anticline |  | | Report (issue) | | 12 sections. The large-scale map shows State and county boundaries, cities and towns, railroad lines, and...reservations. 82. PLATS OF TAXABLE LANDS IN MCCORMICK COUNTY, SOUTH CAROLINA. 1934. approx. 240 items. [NWCS...Subsidence, and Earth Fissures in the Tucson Basin, Pima County, Arizona." 53 Geologic Division, 1867-1997 ...effect of drainage on health in the respondent's county. Some of the replies include data, others refer...by Newton H. Winchell, State Geologist. 185. COUNTY GEOLOGIC MAPS. 1900-1960. 20 items. [NWCS, maps |  | | Report (issue) | | quadrangle (Pl. 1) is taken from the field maps of Mendenhall's survey of 1906, though the area was re-studied...(1919) have discussed the physiography of Riverside County. No detailed study of the physiography was made...discussed the physiography of Western San Diego County. He recognized five terraces near San Diego Bay...the interbedded limestone near the old magnesite quarry, southeast of Winchester. Similar schists are exposed...(probably Bedford Canyon), Santa Ana Mountains, Orange County, California, associated with Rliynchonella, sp |  | | Journal (issue) | | tournament for women, Palm Springs. l!:>-20 Maricopa county schools hobby show, state fairgrounds, Phoenix...Albuquerque. George P. Greake, chairman. 24-26 Lea county, New Mexico, Folk Festival at Hobbs. 2(i Arizona...Parker dam. They reached a ledge 30 feet above Mendenhall's first mark—but found the rock too crumbly for...country between Jerome and Perkinsville, Yavapai county, Arizona. There are numerous small side canyons... linear capsules about 1 inch. Found from Inyo county ranges to Utah and Arizona. Oenothera heterochroma |  | | Journal (volume) | | Darton The Sedimentary Rocks of South Mountain, Pennsylvania. W. Stose The Chemical Evolution of THE Ocean...horizon for about thirty miles into traced Carbon County on Troublesome Creek, where brate it also yields...presence of resid- ually decayed rock at the Portland quarry north of Ithaca. But in view of the striking...have found but one hypothesis that The Portland quarry lies just south of the junc- Cayuga Lake and...Cayuga valley, leaving the site of the Portland quarry under a wedge of ice with slight motion, and hence |  | | Report (volume) | | of Kiwalik Mountain the schists, according to Mendenhall's field notes, are mainly calcareous, with .some...folded and contorted with many faults and with calcite and some, quartz veins. It has been intruded by...pattern on the geologic map (PL VI). According to Mendenhall's field notes the eastern part of this area BULLETIN...In composition they include feldspars, quartz, calcite, pyroxenes, amphiboles, micas, and fragments of...the sand grains being mainly calcite derived from older limestones. Calcite deposited from solution is |
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