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| Petroleum, Energy and Mines, Islamic Republic of Mauritania Second Projet de Renforcement Institutionnel...Copper-Gold Deposits in the Islamic Republic of Mauritania: Phase V, Deliverable 79 By Gregory L. Fernette...copper-gold deposits in the Islamic Republic of Mauritania (phase V, deliverable 79), chap. M of Taylor...Deposits in the Islamic Republic of Mauritania 1 Summary Mauritania hosts one significant copper-gold...1 Potential IOCG Deposits and Occurrences in Mauritania ............................................ |
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| Petroleum, Energy and Mines, Islamic Republic of Mauritania Second Projet de Renforcement Institutionnel...Copper-Gold Deposits in the Islamic Republic of Mauritania: Phase V, Deliverable 79 By Gregory L. Fernette...copper-gold deposits in the Islamic Republic of Mauritania (phase V, deliverable 79), chap. M of Taylor...Deposits in the Islamic Republic of Mauritania 1 Summary Mauritania hosts one significant copper-gold...1 Potential IOCG Deposits and Occurrences in Mauritania ............................................ |
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| Petroleum, Energy and Mines, Islamic Republic of Mauritania Second Projet de Renforcement Institutionnel...Massive Sulfide Deposits in the Islamic Republic of Mauritania: Phase V, Deliverable 77 By Cliff D. Taylor and...massive sulfide deposits in the Islamic Republic of Mauritania, (phase V, deliverable 77), chap. L of Taylor...volcanogenic massive sulfide deposits (VMS) exists in Mauritania in the greenstone belts of the southwestern Rgueïbat............... 1 Potential for VMS Deposits in Mauritania............................................. |
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| Petroleum, Energy and Mines, Islamic Republic of Mauritania Second Projet de Renforcement Institutionnel...Massive Sulfide Deposits in the Islamic Republic of Mauritania: Phase V, Deliverable 77 By Cliff D. Taylor and...massive sulfide deposits in the Islamic Republic of Mauritania, (phase V, deliverable 77), chap. L of Taylor...volcanogenic massive sulfide deposits (VMS) exists in Mauritania in the greenstone belts of the southwestern Rgueïbat............... 1 Potential for VMS Deposits in Mauritania............................................. |
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| an orderto Col. Pfaender, commanding officer at Fort Ridgely,upon the MinnesotaRiver,to furnisha mou...Fortunately Mr. IlenryBack,the chiefof scouts,was at Fort Ridgelyon our arrivalthere; and throughthekindnessof...crystalline quartzite,graduating downward into more reddish quartzite; about 35 ft. 5. Reddish quartzite in thin...from quarry; about 20 ft. 9. Thinly lamtnated quartzite, which in some bands is brittle and friable; layers...Following the course of the riverfromNew Ulm to Fort Ridgely, thereare several exposures of reddish-brown |
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| Allied-side steel came. Excellent exposures of Pokegama quartzite, Bawabik Iron Forma- tion (taconite), argillite...i n Cities. Basal con glomerate of the Sioux quartzite VA mile west of where U S 14 leaves the north...cross the river south into town. Many cobbles of quartzite and jasper are in the roadcuts for the pre-1930...thin layers of low-grade pipestone in the Sioux quartzite 4 miles east on the north bank where the C & N...the Cottonwood River southeast of town. Morton-Redwood Falls, 30 miles northwest, upriver from New U l |
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| ............................................ Quartzite exposures......................-...----.----....continuation of the quartzite in surrounding areas......... Age of the quartzite....... ...............exposures......................................... Fort Ridgely district..................................Gate.................................. Area west of Fort Ridgely ...................................... Basic........... Redwood River area............................................. Area above Redwood River... |
 | Thompson, J. F. H., Sillitoe, R. H., Baker, T., Lang, J. R., Mortensen, J. K. (1999) Intrusion-related gold deposits associated with tungsten-tin provinces. Mineralium Deposita, 34 (4) 323-334 doi:10.1007/s001260050207 | Journal (article/letter/editorial) |
| described with reference to seven major deposits (Fort Knox, Mokrsko, Salave, Vasilkovskoe, Timbarra, Kidston...metasedimentary rocks Metamorphic rocks, granodiorite Quartzite, siltstone, shale Granite Zn, Cu, Mo, W, Pb...Porphyritic granite Granodiorite 0.83 1.5 158 66 Fort Knox Alaska, USA Mokrsko, Czech Republic Salave...Mica-quartz schist Ma®c and felsic ¯ows and tus Quartzite, slate, gabbro Metal suite Deposit age (Ma) Deposit...intrusionrelated gold deposits worldwide (Table 1), including Fort Knox in Alaska, Mokrsko in the Czech Republic, Salave |
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| ............................................ Quartzite................................. ...............rock....................................... North Redwood Granite Works....................................Archean age in the Minnesota River valley Con. Page. Redwood County...........................................ILLUSTRATIONS. Pago. PLATE I. Map of the St. Cloud region, Minn., showing rock outcrops and quarries.......St. Cloud region................... 56 58 6. Strike of aplite dikes in the St. Cloud region......... |
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| been only in reconnaissance, particularly in the region beyond the Eastern Klamath terrane, and this has...al, 1980). The province is a west-facing arcuate region of approximately 30,645 km sq and is a composite...Western Paleozoic and Triossic ~* belt 42' f j | Fort Jones terrane Hayfork terrone, undivided Eastern...locally abundant bedded chert and limestone, quartzite, phyllite, and melange. One melange (schist of...Paleozoic and Triassic belt during early studies of the region (Irwin, 1960) and which includes the Applegate |
| Griffith, Glenn E., Omernik, James M., Smith, David W., Cook, Terry D., Tallyn, Ed, Moseley, Kendra, Johnson, Colleen B. (2016) Ecoregions of California. Open-File Report 2016-1021. US Geological Survey doi:10.3133/ofr20161021 | Report (issue) |
| expanding in the coastal corridor. In California, the region includes the Crescent City Plain, and Humboldt...willows. low mountains of the Northern Franciscan Redwood Forest ecoregion lie entirely in 1i The the coastal...redwoods and Douglas-fir. Historically, unbroken redwood forests occurred and moderated local climate by...floods limits the number of plant species. The region extends north only about 10 miles into Oregon near...near Brookings. In some factors, this region has more similarities to the temperate rain forests of the |
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| ago when limestone was quarried to build part of Fort Snelling. From this small beginning in the early..................... . GRANITES OF THE ST. CLOUD REGION ......................... ST. CLOUD PINK GRANITE...MINNESOTA VALLEY REGION. . • • . . • • . . . . . . . • . . . . . . . . . . . .. THE MORTON-REDWOOD FALLS AREA...ISLE-WARMAN CREEK REGION . . . . . . . . . . . . . . . . . . . . . . . . . . . THE ARROWHEAD REGION ... '" THE.... . . . . . . . . . . . . . . . . . THE WINONA REGION . . . . . . . . . . . . . . . . . . . . . . . |
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| MINNESOTA'S ROCKS AND WATERS The resources of any region determine to a marked degree the activity of its...and C. K. Leith. The geology of the Lake Superior region. U.S.G.S. Mon. 52, 1911. D. E. Willard. The story...Bay and rugged diabase hills 226 107. :;\lap of region in northern Cook County 231 108. Aerial photo...of Mississippi River Valley, Minnehaha Park and Fort Snelling regions 326 157. ::\linnehaha Falls, Minneapolis...together make up what is called the topography of a regIOn. In Minne ota 8 THE FACE OF THE LAND both the |
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| MINNESOTA'S ROCKS AND WATERS The resources of any region determine to a marked degree the activity of its...and C. K. Leith. The geology of the Lake Superior region. U.S.G.S. Mon. 52, 1911. D. E. Willard. The story...Bay and rugged diabase hills 226 107. Map of region in northern Cook County 231 108. Aerial photo...of :Mississippi RiYer Yalley, Minnehaha Park and Fort Snelling regions 326 157. Minnehaha Falls, Minneapolis...together make up what is called the topography of a region. In ~Iinnesota 8 THE FACE OF THE LAND both the |
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| statement 1482 Morton quartz monzonite gneiss 1482 Fort Ridgely granite 1483 Sacred Heart granite 1483 Montevideo...of the Precambrian Shield except for the Sioux quartzite of southwestern Minnesota and southeastern South...North Redwood many of the outcrops have a thin weathered layer, and along the gorge of the Redwood River...to northwest in the valley these types are: (1) Fort Ridgely granite, (2) Morton quartz monzonite gneiss...and are well exposed in outcrops north of North Redwood. The complex structure of the Morton gneiss probably |
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| are the Wappinger limestone and the Poughquag quartzite, both of Cambra-Ordovician Age2. Geology of the...scaling following blasting. It was thought that the quartzite wou!d be met in the South Tunnel before rhe excav~tion...Bird,4 the Board's Geolo~ist, reports : "The quartzite forms the bedrock at rhe surface for almost a...seen to within a couple feet of the top of the quartzite. At first we thought this stretch was deep enough...hundred feet in depth at the mosc. " Poughquag quartzite is a very tough, grayish-white, massive rock, |
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| candidate monitoring wells completed in the Sioux Quartzite, Biwabik Iron Formation, Keewenawan Volcanic rock...River-Winnipeg Precambrian aquifers a. b. c. d. Sioux Quartzite Keweenawan rocks North Shore Volcanic rocks Undifferentiated......................................... SIOUX QUARTZITE.................................................i_ _! r ~' V*%_i!'_i L_! v f--^---i«^«fj- J REDWOOD ; . L._.___i j X -^ " ._ r*^L ;7"/ J -- « RICE..._JcoTTONW^oo[_'^ I _J "v~ * - _ -J I N. U1 _ lir / REDWOOD -*-'. - ._L _ / 44°-L /'J '^ \ r'MENNEPINl |
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| in the region.________________ Shephard Creek Formation.________________________________ Redwood Canyon...______ 3. Photographs showing typical exposure of Redwood Canyon Formation and small faulted folds in the...sandstone, shale, and conglomerate, here named Redwood Canyon Formation, which contains Baculites, probably...question of the petroleum and gas potential of the region. Perhaps of most significance is the identification...southeastward to Redwood Canyon in the Oakland East quadrangle. The San Leandro Hills extend from Redwood Canyon |
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| vegetation was destroyed and the disintegrated region became arid, this great decayed mantle became the...wind-blown loess. Where, on the other hand, such a region became the seat of a continental glacier, this...mantled around its three sides with the Cambrian quartzite in which Mr. Walcott found Cambrian trilobites...stopped short at the contact of the gneiss with the quartzite. In digging to expose the contact relations, Mr...dike had been decayed and washed out before the quartzite was de posited’, leaving an open fissure several |
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| STRATEGIC AND CRITICAL MINERALS IN THE MIDCONTINENT REGION, UNITED STATES WARREN C. DAY AND DIANE E. LANE...Gordon P. Eaton, Director Published in the Central Region, Denver, Colo. Manuscript approved for publication...(Strategic and critical minerals in the midcontinent region, United States ; ch. H) Includes bibliographical...Strategic and critical minerals in the midcontinent region, United States ; ch. H. QE75.B9 no. 1989-H [QE570]...drill holes discussed in the text H2 Map of the Redwood Falls-Morgan area along the Minnesota River Valley |
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| annelid tubes were thus found in a thin band of quartzite, intercalated in a series of highly micaceous...the complicated stratigraphy of this Palaeozoic region, some considerable additions to our knowledge have...1017/S0016756800130742 176 Revieics—Boverton Redwood—On Petroleum. the ice which drained from the inland...done in Edinburgh. II.—PETROLEUM. By BOVERTON REDWOOD, F.R.S.E., assisted by GEO. T. HOLLOWAY and other |
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| Coordinates 37.53 Station APEEL Array: Station 2 Redwood Citj H. 122.26 M The Instrument sits on appx...S-Vave m/»ec t i 408 Station APEEL Array:Sta_. 2 Redwood City flen* ity g/om* Site Geology Log ->..^....of Seismic Velocities 1n the San Francisco Bay Region...Part 3, Open File Report 77-850 Schlocker, S...formation of pre-Cambrian age. It consists of quartzite, quartzite conglomerate, quartzose sandstone, and a...g/cm3 TliV' :. ' % B Uinta Fm.-quartz1te, quartzite conglomerate, quartzose sandstone, and minor beds |
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| FUNERAL MOUNTAINS AND ADJACENT AREAS, DEATH VALLEY REGION, SOUTHERN CALIFORNIA by B. W. Troxel and L. A...VALLEY REGION, SOUTHERN CALIFORNIA by B. W. Troxel1 and L. A. Wright2 ^.W. Troxel 2961 Redwood Road...FUNERAL MOUNTAINS AND ADJACENT AREAS, DEATH VALLEY REGION, SOUTHERN CALIFORNIA by B. W. Troxel and L. A....and stratigraphic framework of the Death Valley region. Within the map area, the Funeral Mountains consist...single most prominent structural feature in the region. The backbone of the central and northwestern Funeral |
 | Rooney, Alan D., Selby, David, Houzay, Jean-Pierre, Renne, Paul R. (2010) Re–Os geochronology of a Mesoproterozoic sedimentary succession, Taoudeni basin, Mauritania: Implications for basin-wide correlations and Re–Os organic-rich sediments systematics. Earth and Planetary Science Letters, 289 (3) 486-496 doi:10.1016/j.epsl.2009.11.039 | Journal (article/letter/editorial) |
| Mesoproterozoic sedimentary succession, Taoudeni basin, Mauritania: Implications for basin-wide correlations and...Keywords: Re–Os geochronology Mesoproterozoic Mauritania Atar Group Taoudeni basin a b s t r a c t The...(ORS) of the Atar Group of the Taoudeni basin, Mauritania. These ORS are sediments with elevated total...(Peters, 1986). triggered by the dense ferruginous quartzite material associated with aluminous gneisses of...for the Taoudeni basin was described in the Adrar region of the Mauritanian section of the basin and in |
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| interest shown by the geologists of the Lake Superior region in theprogress of the investigation and their helpful...Area .. Saganaga Lake Area ... Vermilion Granite Region .. General Statement ... . Vermilion Granite ........... . 60 60 Ages for the Vermilion Granite Region Vermilion Granite ................ . 60 Northwest...Northwest Angle Pegmatites ......... . 62 Giants Range Region ...... . General Statement ....... . Giants Range...Ages from Zircon Types Ages for the Giants Range Region. . . . . ...... 62 62 ()3 64 64 65 History of |
