 | | Report (volume) | | ________________________________________________ Quartz monzonite_____________________________-_____--____...vicinity________________ In pocket Geologic traverse along unnamed gully, northeast of mine, sees. 18, 19, and 20-__...cryptocrystalline silica vein deposit that cuts quartz monzonite and alaskite at the Free Enterprise mine...occur in groups having a lenticular pattern. Where quartz monzonite is the wall rock, they are bordered by...the leached zone to the ground-water level. The quartz monzonite appears to be a more favorable host rock |  | | Report (issue) | | contact with (and were originally overlain by) an unnamed marine Eocene sequence, the nonmarine Sespe Formation...grained and crudely banded as a result of layers of quartz and feldspar alternating with layers of dark green...potassium feldspar, plagioclase, and quartz in a granulated groundmass of quartz, biotite, hornblende, and feldspar...and undulatory extinction and mortar structure in quartz are common. These rocks in the Alexander well are...Gabriel Mountains and gneiss of the Alamo Mountain region northwest of the map area correlated to the Mendenhall |  | | Report (chapter) | | lenses of pyritic grains, fish bones, conodonts, quartz sand, chert nodules, and glauconite. Lags of reworked...carbonate deposits in the northern midcontinent region (Cluff 1980; Witzke et al. 1988). Extreme stratigraphic...3. A. Polished slab of fine grained, laminated quartz arenite intcrbedded with black, graptolitebearing...County, New York. B. Interlaminated black shale and quartz arenite; note scour feature truncating lower laminae...diastemic contact between Lodi Limestone (below) and unnamed black shale unit (above) within Penn Yan Member |  | Liu, Jin-Hua, Zhou, Lian, Algeo, Thomas J., Wang, Xuan-Ce, Wang, Qian, Wang, Yong, Chen, Mu-Long (2020) Molybdenum isotopic behavior during intense weathering of basalt on Hainan Island, South China. Geochimica et Cosmochimica Acta, 287. 180-204 doi:10.1016/j.gca.2020.04.018 | Journal (article/letter/editorial) | | Basalts of Cenozoic age were erupted widely across northeastern Hainan, with episodic activity from the Miocene...nearest surface channels to the study sites are unnamed gullies at distances of ~1‒2 km, and the areas...in view of continuous subaerial exposure of northeastern Hainan Island since the Miocene (Shi et al....the Nandu River (northern Hainan), and a small gully close to (~2 km away from) the study sites (Fig...~60 % in both soil and saprolites. Gibbsite and quartz are present mainly in the soil layer (from 9.5 |  | | Journal (article/letter/editorial) | | shear in supracrustal rocks to a series of narrow, gully forming dextral splays where it enters basement...these splays, granodiorite is transformed into quartz-poor biotite and ⁄ or chlorite schists, reflecting...FL, Floiten valley; GU, Die Gunggl; PJ, Pfitsch region; SG, Schlegeisgrund; SU, Sundergrund; ST, Stillup...middle amphibolite facies in the core. In the Pfitsch region (Fig. 1), the rocks experienced nearly isothermal...Lower and Upper Schieferhülle series in the Pfitsch region to approximately 30 ± 1 Ma (Christensen et al. |  | | Journal (article/letter/editorial) | | Cleveland, at first at Grosmont and later in the richer region farther north, near Guisborough and Skelton. Except...here extends the area of Yeovilian rocks in the region to the west as previously defined (Macmillan, 1932)...extension of the Whitby Basin facies of the coastal region already defined (Rastall and Hemingway, 1940)....Fossiliferous Dogger of Whitby Basin facies is exposed in a gully below the west end of Aislaby, near the Woodlands...exposed, the upper 8 feet of which contains coarse quartz fragments. Although no diagnostic fossils have |  | | Report (edition) | | which inf1uenced the geological history of the region particularly in lower Palaeozoic times. Greenly...Engan Spilitic Formation Triple 'Group' Formation Unnamed pelitic units Church Bay Tuffs Skerries Formation...are found everywhere except in the Carmel Head region, where the Caradoc rocks overstep the Precambrian...grading and convolute bedding, pelitcs with prominent quartz veins, and quartzite units with cross bedding....nat-lying, with early recumbent folds. They are cut by quartz veins, which were folded during later movements |  | | Report (volume) | | Undifferentiated Paleozoic(?) sedimentary rocks.__-----_-.--__ Quartz monzonite__---__--___-----_---_----_-_-----------Tertiary...have been intruded by biotite quartz monzonite and hornblende-biotite quartz diorite of Cretaceous age and...Jones in 1956. The Jarbidge quadrangle is in northeastern Nevada and southwestern Idaho; all but a small...Nevada; the remainder is in Owyhee County, Idaho. The region is accessible from Elko by State Highway 11 and...quartzite and quartz-mica schist. One bed of feldspathic quartzite has blastophenocrysts of quartz and is apparently |  | | Report (volume) | | Oreg., or Winuemucca, Nev., the nearest towns. The region is sparsely settled by stockmen; Fields, Denio...producing the reeflike masses of chalcedony and quartz with their halos of limonitic and calcitic clays...ore minerals occur in veins of chalcedony, clear quartz, and barite, or in open crush-breccias of reef...high-grade ore is irregularly distributed. The region must remain one for the operator equipped with...main topographic features of the Steens-Pueblo region and the location of the area. QUICKSILVER DEPOSITS |  | Brandon, A., Aitkenhead, N., Crofts, R. G., Ellison, R. A., Evans, D. J., Riley, N. J. (1998) Geology of the country around Lancaster. British Geological Survey, London. | Book | | has been an active search for hydrocarbons in the region, the Bowland Shale being considered the n1ost...presented evidence for ice moven1ent and till in the region, fro1n data gathered during his survey work. His...fission track analyses concluded that the Pennine region was covered by up to 3 kn1 of post-Triassic sedi1nents...This mudstone sequence cornprises the highest. unnamed division of the I-fodder ~fudstone Formation in...sandstone to be quartz arenite ,~ith very poor sorting and almost. no porosity due to the tight quartz cement |  | | Book | | Garbh Choire Dhaidh 17. Corrie of the Chokestone Gully A'an Beihn a· Bhuird BRAEMAR The Cairngorms...Loch. Photo by Rab Anderson. Rear cover-Pinnacle Gully; Shelter Stone Crag. Photo by Mark Diggins. Filmset...Keir 84 6. Central Slabs-Norman Keir 92 7. Central Gully Wall (photodiagram)-A. Nisbet 108 8. Garbh Choire...(photodiagram) - A. Nisbet 226 20. Cairn Etchachan: The Gully Face (photodiagram) - Allen Fyffe 238 21. Shelter...Occasionally, cavities in these veins contain crystals of quartz, which may be tinted with impurities to give it |  | | Report (issue) | | entranceto FallenTulip Poplaradit 77 30. Photograph of quartz veins in brecciated dolomite. Fallen Tulip Poplar...gray), pyrite (cubes) Pyrite, phlogopite, talc, quartz, calcite (orange, strontian), barite (white, platy)...prospect is located between U. S. Route 30 and an unnamed tributary to Rock Run, Valley Township, Chester...pyrite (some as cubes in pyrrhotite), muscovite, quartz Minor: Dolomite(ferroan)3 Trace: Graphite, dravite4...rock minerals present are primary and secondary quartz and sericite. Metallic minerals per1. Based on |  | | Book (edition) | | relatives of mammals still present in the same region, but it is also notably archaic. Almost all the... mainly, upon making a detailed map of the FLK region where Zinjanthropus had been found in 1 959. This...the mammalian fauna. They are over lain in this region and also to the west, as far as JK I, by a thick...magnitude. Further to the west, for example, in the region of HWK, FLK and VEK, the tuft's of Bed I are very...been traced from the second fault through to the region of site VEK. This horizon was chosen as a matter |  | | Book (edition) | | relatives of mammals still present in the same region, but it is also notably archaic. Almost all the... mainly, upon making a detailed map of the FLK region where Zinjanthropus had been found in 1959. This...been traced from the second fault through to the region of site VEK. This horizon was chosen as a matter...the mammalian fauna. They are overlain in this region and also to the west, as far as JK I, by a thick...magnitude. Further to the west, for example, in the region of HWK, FLK and VEK, the tuffs of Bed I are very |
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