 | | Journal (article/letter/editorial) | | stock-shapedintrusion consisting of aplitic granite and quartz-feldspar-porphyry. $ericitic alteration is the most dominant...alkali-granite composition:black quartz-feldspar-porphyry,gray quartz-feldspar-pordenite mineralization within...area (Fig. 1). Ihlen and Vokes (1978 gray quartz-feldspar-porphyryis sharp. Transitional a and b) have suggestedthat...concept,it was suggested(Sch•nwandt, gray quartz-feldspar-porphyries.The sharpcontact 1975) that molybdenite...where the the quartz-feldspar-porphyry. Furthermore the 1211 1212 A. GEYTI AND H. K. SCHCNWANDT MOLYBDENITE |  | | Book | | Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Mi11eml Discm•t•ries, /960--20/ 5 ONTARIO Bentley Lake Road occurrence, Faraday Township, Hastings County...vein-dike digging site which they called the Bentley Lake Road occurrence, south of Bancroft. Sharp, flattened...( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite...massive calcite. or, rarely, still attached to the feldspar/mica walls of the dike (www.davidkjoyceminerals |  | | Journal (article/letter/editorial) | | chlorite and illite. Other minerals were quartz, K-feldspar, dolomite and pyrite. X-ray diffraction patterns...extensive fall-outs and slides in a water tunnel supplying Bogota with fresh water. In hand specimen the rocks...of 2 s, by using a normal focus tube producing Cu-K~ radiation (40 KV and 20 mA). Peak width at half height...prepared using water for the grinding process. The rocks split up along the cleavage as the water dries out...to the cleavage. Specimens which had access to water and were afterwards allowed to dry, exhibit open |  | Miller, A.Z., Dionísio, A., Sequeira Braga, M.A., Hernández-Mariné, M., Afonso, M.J., Muralha, V.S.F., Herrera, L.K., Raabe, J., Fernandez-Cortes, A., Cuezva, S., Hermosin, B., Sanchez-Moral, S., Chaminé, H., Saiz-Jimenez, C. (2012) Biogenic Mn oxide minerals coating in a subsurface granite environment. Chemical Geology, 322. 181-191 doi:10.1016/j.chemgeo.2012.07.005 | Journal (article/letter/editorial) | | corresponds to galleries of a 16th century spring water tunnel dug throughout the granite bedrock located in...oxides are categorized as having either a layer or tunnel structure. Phyllomanganates (layer-structure oxides)...(tunnelstructure oxides) such as todorokite with its 3 × 3 tunnel structure, have chains of edge-sharing octahedra...located in the 16th century Paranhos spring water tunnel under the city of Porto (NW Portugal). Use of...described on the granite tunnel walls in the first quarter of the 20th century. The tunnel is 3.289 km long, |  | | Book | | Petrology and origin of the Hardvston Quartzite (Lower Cambrian) in eastern Pennsyl¬ vania and western...the Middle Appalachian Region IA. Precambrian and lower Paleozoic geology of the Delaware Valley, New JerseyPennsylvania...the Valley and Ridge Province between Delaware Water Gap and Lehigh Gap, Pennsylvania, by Jack Epstein...Epstein 132 Structural control of wind gaps and water gaps and of stream capture in the Strouds¬ burg...Bowman, 1966b) Light Minerals Quartz Chert Feldspar, potash Feldspar, plagioclase Glauconite, single grains |  | | Report (issue) | | northeastern Aroostook County, Maine... Louis Pavlides Lower Devonian Seboomook Formation and Matagamon Sandstone...analysis of rocks exposed in the Wachusett-Marlborough Tunnel, east-central Massachusetts .James W. Skehan. S...stratigraphic section; Goldsmith has done the same for the lower part. The authors of the symposium papers were asked...are isoclinallv folded on a broad scale but their lower contact, for many kilometres, is not folded. Isoclinal...discuss places, such as in the Wachusett-Marlborough Tunnel, where it is evident that many of these minor folds |  | | Book (volume) | | reworked, and spread as a vast deltaic accumulation of water absorbing sands covering tens of thousands of sq...supply of cold artesian, Rocky Mountain snow melt water. Harney Peak is the crest of the geologically notable...The November Mine, 1.2 mi. SE of the Needles Eye Tunnel, on the W side of Hwy. 87Arsenopyrite, Fluorapatite...Fairfield agates. CUSTER: N, (1) near Laughing Water Cr., many area minesColumbite, Gold, Silver, etc...Sphalerite; tunnel on US 16A (between US 16 and town), park car and take trail around tunnel, in rock piles |  | Sykora, Stephanie, Selley, David, Cooke, David R., Harris, Anthony C. (2018) The Structure and Significance of Anhydrite-Bearing Vein Arrays, Lienetz Orebody, Lihir Gold Deposit, Papua New Guinea. Economic Geology, 113 (1) 237-270 doi:10.5382/econgeo.2018.4550 | Journal (article/letter/editorial) | | alteration zone at Lihir is a broad zone of biotite ± K-feldspar–altered rocks that contain thick (0.1–>30 m)...rsl 5 g/t Au isosurface, projected to 100 m rsl k ne Luise Volcano Kinami Volcano Huniho Volcano Londolovit...Ballantyne, 1987; Moyle et al., 1990; Carman, 1994). The lower anhydrite zone records an early porphyry-style ...Pyrite veins > 95% K-feldspar (adularia), illite and pyrite alteration 1 to 95% K-feldspar (adularia), illite...anhydrite ± carbonate Biotite ± K-feldspar (orthoclase) alteration K-feldspar (orthoclase) ± biotite alteration |  | | Report (issue) | | topical studies (d) Ground-water studies (e) Surface-water studies (f) Quality-of-water studies (g) Field and...investigations in progress in the Geologic and Water Eesources Divisions with the names and addresses...fiscal year 1961, the services of the Geologic and Water Eesources Divisions were utilized, or supported...task by Stanley W. Lohman, Edward T. Ruppel, Paul K. Sims, and Vernon E. Swanson. Mrs. Virginia P. Byers...Results Prepared by members of the Geologic and Water Resources Divisions GEOLOGICAL GEOLOGICAL SURVEY |  | | Report (issue) | | host-rock bedding. Black Cloud mine, Leadville district. Sherman-type ore (bottom) in paleokarst breccia...with ferroan dolomite. rv1oose mine, North Alma district. Photographs b)' \Villiarn Sacco, Peabody Museum...Johansing Leadville district: Geology and the origin of ore deposits in the Leadville district, Colorado: Part...and the origin of ore deposits in the Leadville district, Colorado: Part II. Oxygen, hydroge n, carbon...in the Leadville district, with emphasis on occurrences in th e Black Cloud mine, Lake County, Colorado |  | | Book (volume) | | burstones they needed for grinding grain in their water mills. Other collectable minerals are rare, although...fossils. GREEN (or Strontian) ISLAND, Put-in-Bay, Lake Eire, as fine crystals and large masses filling...occurs at many localities in maroon sediments of Lower Permian age, with the greatest concentrations south...of Co.), the Copper Butte Dist. (including the Lower Snake R.), regional mines, especially the Copper...LINN, CLACKAMAS & MULTNOMAH COUNTIES AREA, all low-water gravel bars of the Willamette R., and its tributaries⎯agate |  | | Report (volume) | | Pa. Am. Water Resources Assoc. Proc. Ser. Proceedings Series. Urbana, Ill. American Water Resources...Resources Association Am. Water Works Assoc. Jour.- Journal of the American Water Works Association. New York...Highway Department. Phoenix, Ariz. Arizona Land Dept. Water Resources Rept. Resources Report. Phoenix, Ariz...Sci. Proc. Ark. Arizona State Land Department Water Arkansas Academy of Science Proceedings. Arkansas...Commission Information Arkansas Geol. Comm. Water Resources Summ. Water Resources Summary. Little Rock, Ark. |  | | Book | | correlations: Britain and Scandinavia H1GGINS, A. K. & PHILLIPS, W. E. A. East Greenland Caledonides--an...275 SHANNON, P. M. The tectonic evolution of the lower Palaeozoic rocks of extreme SE Ireland 281 PARSON...339 Contents vii WINCHESTER,J. A. & WHITTLES,K. H. The pattern of three-dimensional metamorphism...intensity 5. relationships of the Precambrian and lower Palaeozoic metamorphisms of the Scottish Highlands...Irish Silurian rocks 423 ALDRIDGE, R. J., DORNING, K. J., HILL, P. J., RICHARDSON, J. B. • Microfossil |  | | Book | | assistants L. Barke, T. Mattsson, M. Jensen, and K. Thomaidis for assisting us during the final write-up...A. Gurenko, T. H. Hansteen, A. Hansen, H. Hausen, K. Hoernle, E. Ibarrola, A. Klügel, S. Krastel, M.-A...Watkins, A.B. Watts, S. Wiesmaier, J.A. Wolff, and K. Zazcek. xiii CHAPTER THE CANARY ISLANDS: AN INTRODUCTION...seamounts by now, even when accounting for the lower volume and weight of the Canarian archipelago relative...density of approximately 2.65 g/cm3, which is much lower than the dense basaltic oceanic crust (2.8 3 g/cm3) |  | | Report (issue) | | bright red rock) Banded iron formation from the lower Mapepe Formation of the Fig Tree Group in the outheastern...hematite. (Lower photo--tan rock) Pillow ba alts with well-developed radial pipe vesicles from the lower part...the Barberton Greenstone Belt (BGB) consists of a lower, predominantly volcanic sequence, the Onverwacht...and Mapepe Formations. Volcanic breccia in the lower part of the exposed section of the Auber Villiers...Luck, and Baviaanskop Formations in the Eureka District. The wide development of conglomerate at the base |  | | Report (issue) | | rocks and generally average about 35 percent (19°); lower slopes are benched and basement rocks are overlain...north side of the San Bernardino Mountains, by Fred K. Miller - - - - - - - - - - - - - - - - 83 6. Tectonic..., Johnson, D. L., Clark, M. N., and Rockwell, T. K., 1980, Tectonic geomorphology and earthquake hazard...14-08-0001-17678, 167 p., 9 pis., 48 figs. Lajoie, K. R., Kern, J.P., Wehmiller, J. F., Kennedy, G. L....no. 3, p. 693-730. Yerkes, R. F., and Lee, W. H. K., 1979, Late Quaternary deformation in the western |  | | Book | | following persons provided useful ideas and materials: A. K. Baird, S. S. Beus, W. A. Braddock, M. L. Bregman... S. A. Kirsch, R. G. Lawrence, W. E. LeMasurier, K. A. McDonald, D. F McGeary, R. G. McWilliams, M. E...Maddock, W. D. Martin, M.A. Murphy, T. L. Pewe, K.]. Schulz, K. Servos, R. L. Shreve, P. Snavely, III, L.... L.Jones,]. R. Keaton, D. K. Keefer, V. A.M. Langenheim, R. V. Laniz, D. K. Larue, C. McCloy, G. Mahood...Record, 197; 10-2. Alluvial Deposits, 198; 10-3. Lake Deposits, 200; 10-4. Eolian Deposits, 201; 10-5 |  | | Book (volume) | | contact with air. Their re- activities with air and water decrease with increasing molecular weight; BzHg...instantaneously, whereas ByoHi4 must be heated with air or water to obtain an appreciable reaction rate. Because...proceeds according to reaction (3), and that with water yields hydrogen and boric acid, as shown by reaction...the term borate. With the exception of avogadrite, (K,Cs)BF;. and ferrucite, are borates. (valence) of...States (Mojave Desert), Turkey, Russia (Inder district), Tibet, Italy, Germany, Argentina, Bolivia, Canada |
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