 | | Journal (article/letter/editorial) | | co-existing borosilicate minerals in the Larsemann Hills, East Antarctica. The assemblages contain kornerupine...hosted within quartzofeldspathic gneiss; and (2) Seal Cove, where coexisting kornerupine and grandidierite...grandidierite- and kornerupine-bearing segregations from Seal Cove largely postdate structures developed during a...assemblages that coexist with the borosilicates at Seal Cove, indicate the prevailing conditions were 5.2-5...decompression, coexisting borosilicates, Larsemann Hills, East Antarctica. Introduction GRANDIDIERITE is a |  | Carson, C. J., Dirks, P. G. H. M., Hand, M., Sims, J. P., Wilson, C. J. L. (1995) Compressional and extensional tectonics in low-medium pressure granulites from the Larsemann Hills, East Antarctica. Geological Magazine, 132 (2) 151-170 doi:10.1017/s0016756800011729 | Journal (article/letter/editorial) | | low-medium pressure granulites from the Larsemann Hills, East Antarctica C. J. CARSON*1, P. G. H. M. DIRKSf...November 1994) Abstract - Meta-sediments in the Larsemann Hills that preserve a coherent stratigraphy, form...dominant gneissic foliation in much of the Larsemann Hills, contain a moderately east-plunging lineation...with a high-strain zone, to the south of the Larsemann Hills, where S3 is the dominant gneissic layering...Thus, decompression textures typical for the Larsemann Hills granulites maybe the combined effect of two |  | | Journal (article/letter/editorial) | | granulite terrane: an example from the Larsemann Hills, East Antarctica C . J . C A RS O N, 1* R . P O WE...exposed in the Larsemann Hills, East Antarctica, contain leucosomes with abundant quartz and plagioclase...thin mantles of cordierite replacing spinel and quartz within metapelites, and garnet replacing orthopyroxene...textures. Key words: cooling; decompression; East Antarctica; medium- to low-P granulites; migmatites; partial...terrane, using an example from the Larsemann Hills, East Antarctica. Textures preserved within leucosomes |  | | Report (chapter) | | phosphate-rich rocks in the Larsemann Hills, Prydz Bay, East Antarctica: tectonic implications EDWARD...are exposed over c. 15 × 5 km2 in the Larsemann Hills, Antarctica. The most widespread are biotite gneisses...present position in Antarctica. Rocks lithologically similar to those in the Larsemann Hills include prismatine-bearing...granulites in the Windmill Islands, Wilkes Land, and tourmaline – quartz rocks, sodic gneisses and apatitic iron...Neoproterozoic basin in the Prydz Belt, extending along the eastern shore of Prydz Bay from the Rauer Group |  | | Journal (article/letter/editorial) | | com/loi/taje20 Timing of the progress granite, Larsemann hills: Additional evidence for early Palaeozoic orogenesis...Wilson (1996) Timing of the progress granite, Larsemann hills: Additional evidence for early Palaeozoic orogenesis... 539-553 Timing of the Progress Granite, Larsemann Hills: additional evidence for Early Palaeozoic orogenesis...plutons exposed in the Larsemann Hills region, southwest Prydz Bay, east Antarctica. The granite was emplaced...confirm Early Palaeozoic orogenesis in the Larsemann Hills region. This orogen appears to have evolved |  | MacGregor, JohnRyan, Grew, Edward S., De Hoog, Jan C.M., Harley, Simon L., Kowalski, Piotr M., Yates, Martin G., Carson, Chris J. (2013) Boron isotopic composition of tourmaline, prismatine, and grandidierite from granulite facies paragneisses in the Larsemann Hills, Prydz Bay, East Antarctica: Evidence for a non-marine evaporite source. Geochimica et Cosmochimica Acta, 123. 261-283 doi:10.1016/j.gca.2013.05.030 | Journal (article/letter/editorial) | | granulite facies paragneisses in the Larsemann Hills, Prydz Bay, East Antarctica: Evidence for a non-marine evaporite...1000 Ma Brattstrand Paragneiss in the Larsemann Hills, East Antarctica. The B isotope composition of these...source of B for the B rich lithologies of the Larsemann Hills. A possible scenario for precursors of these...tourmaline, prismatine and grandidierite from the Larsemann Hills using thermal ionization mass spectrometry...borosilicate minerals in the Larsemann Hills, a coastal exposure on Prydz Bay, East Antarctica (Fig. 1), contain |  | Maas, Roland, Grew, Edward S., Carson, Christopher J. (2015) ISOTOPIC CONSTRAINTS (Pb, Rb-Sr, Sm-Nd) ON THE SOURCES OF EARLY CAMBRIAN PEGMATITES WITH BORON AND BERYLLIUM MINERALS IN THE LARSEMANN HILLS, PRYDZ BAY, ANTARCTICA. The Canadian Mineralogist, 53 (2) 249-272 doi:10.3749/canmin.1400081 | Journal (article/letter/editorial) | | BORON AND BERYLLIUM MINERALS IN THE LARSEMANN HILLS, PRYDZ BAY, ANTARCTICA ROLAND MAAS School of Earth Sciences...subclass) characterized by graphic tourmaline + quartz intergrowths and boralsilite (Al16B6Si2O37); the...tourmaline (but not in graphic intergrowths with quartz), beryl, and primary muscovite and are assigned...radiogenic isotopes, boron minerals, beryl, Larsemann Hills, Antarctica. § Corresponding author e-mail address...of amphibolite-facies complexes. The Larsemann Hills, Antarctica, offer a unique opportunity to investigate |  | | Journal (article/letter/editorial) | | of metapelitic granulites from the Larsemann Hills, East Antarctica Laixi Tong a,⁎, Xiaohan Liu b, Yanbin...Metamorphic P–T paths Metapelitic granulites Larsemann Hills East Antarctica a b s t r a c t Through detailed textural...metapelitic granulite lens from the Larsemann Hills, East Antarctica. The M1 assemblage has been overprinted...All rights reserved. 1. Introduction The Larsemann Hills and adjacent areas occur as an important part...high-grade tectonic mobile belt (the Prydz Belt) in East Antarctica (Carson et al., 1996; Dirks and Wilson |  | | Book | | · t; •· \ / I \ ' / ·StJt) 0 Bartlett Is land -, .·.:·/:··: ·;.,:.-.~:. esv ·:_:~::.-~: ·...Great Cronberr 1 44 ° 1 15 68° 25' vens Hulls Cove Bar I. ~ 'I ~ Porcupine Is. .. .. .. .. .....looking north. To the left is Dorr Mountain and the eastern flank of Cadillac Mountain. At right center is...the top are the Porcupine Islands and Frenchman Bay . Reverse: Geologic map of Mount Desert Island. ...National Park Service, Acadia National Park, Hulls Cove, Main e. Library of Congress Catalog Card No: 73-107079 |  | | Report (issue) | | provinces along the offshore extension of the Seal Cove fault, the Farallon and Golden Gate platforms...platforms. The Farallon plat- form lies west of the Seal Cove fault and is characterized by a thick sequence...granitic basement is vertically displaced along the eastern flank of the granitic ridge and along two high...anticlines lie south of the Point Reyes fault. The eastern boundary of the Tertiary basin is delineated by...sediments. This structural high is truncated at the Seal Cove fault. On the Golden Gate platform, the San |  | | Report (issue) | | .. Page. ·PLATE VIII. A, Wave-cut ·bench, Dall Bay, Gravina Island, Alaska; B, Conglomerate, Blank Inlet...Inlet, Gravina Island; D, Anticline on Vallenar Bay, Gravina Island ________ ·___ .. ·___ . __ _ F:rGuRE...southern province is the Coas~ Range, a high mountain coast of Alaska. · mass with elevations of 7,000 to .8...comprises essentially the mainland area and The Coast Range extends froin near the boundary of Washington...and partly.in Canadian territory. Following the coast line for nearly 900 miles it passes inland behind |  | | Report (issue) | | .................. 35 Melting of Glacial Ice on Land .................................................. I - 10 - I I mltes .. t} O'a .Swan$ l$land p Figure I. Map of mid-coastal Maine and Mount... Maine has long been famous for the beauty of its coast. Mount Desert Island in particular has attracted...the largest of the many islands located along the coast of Maine (Figure 1). Measuring almost 108 square...beauty . Out of their efforts came the donations of land that formed the nucleus of Acadia National Park |  | | Report (issue) | | unit on the west-facing flank of Montara Mountain BAY MUD (Holocene) Very poorly to well consolidated blue-gray...moderately well sorted by wave action. Along the exposed coast thickness varies with the seasons; maximum thickness...adjacent to the El Granada breakwater in Half Moon Bay DUNE SAND (Holocene) Loose fine- to medium-grained...wind-blown sand. Present along the coast northeast of Shelter Cove and northeast of Mori Point. May be...and forms near-vertical cliffs along the exposed coast; upper part of a terrace unit is coarsergrained |  | | Report (volume) | | ............................................. Eastern Gravina lodes....................................mineral deposits. A few lodes on the northeast coast were worked for gold in the early 1900's, but no...disseminated sulfide deposits and sulfidebearing quartz-calcite fissure veins that have been prospected...valley that connects Bostwick Inlet and Vallenar Bay and herein is informally called Bostwick-Vallenar...and its extensions in Bostwick Inlet and Vallenar Bay are intensely sheared and hydrothermally altered |  | Ayuso, Robert A., Karl, Susan M., Slack, John F., Haeussler, Peter J., Bittenbender, Peter E., Wandless, Gregory A., Colvin, Anna (2005) Oceanic Pb-isotopic sources of proterozoic and paleozoic volcanogenic massive sulfide deposits on Prince of Wales Island and vicinity, southeastern Alaska. Professional Paper Vol. 1732 (1732e) US Geological Survey doi:10.3133/pp1732e | Report (issue) | | Barrier Islands, Moira Copper, Niblack, and Nichols Bay deposits. Pb-isotopic signatures were determined...Sound unit plot on a different trend U.S. Bureau of Land Management. 1 (206Pb/204Pb=17.375–19.418, 207Pb/204Pb=15...Pb-isotopic ratios of Devonian polymetallic (Pb-Zn-Au-Ag) quartz-sulfide veins vary widely (206Pb/204Pb=18.339–18...seaway between the Siberian paleocontinent and the eastern margin of the Baltic shield (for example, Blodgett...massive sulfide deposits, as well as polymetallic quartz-sulfide veins of varying age (Ordovician through |  | | Journal (article/letter/editorial) | | section of the later pre-Cambrian rocks along the eastern coast of North America, and an understanding of this...miles wide, which separates Trinity Bay on the north from Placentia Bay on the south. The peninsula itself...described lie along the eastern side of Conception Bay, at the head of this bay, and in the vicinity of...peninsula and of the later pre-Cambrian rocks of eastern Newfoundland in general. Except for the mining...a large scale at Great Bell Island in Conception Bay, fishing is almost the sole occupation of the inhabitants |  | | Report (issue) | | Island the most active mining was done on Karta Bay, Kasaan Peninsula, near Port Johnson, and near the...head of I-Ietta Inlet. At Big Harbor, on the west coast of the island, copper ore was produced, but the...Cholmondefoy Sound, McLean Arm, ·Mallard Bay, and Brownson Bay. All these places except the last two were...southeast! of Ketchikan. PRINCE OF WALES ISLAND. KASAAN BAY AND VICINl'rY, Kasaan Peninsula, which severail...mine, about 2 miles inland from the head of Karta Bay. The development at this place has been rather folly |  | | Report (issue) | | Island: St. John's - Channel- Port aux Basques White Hills quarry . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . 56 Logy Bay amethyst occurrence . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . 56 Middle Cove, Outer Cove occurrences . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . 59 South Side Hills quarry . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . 59 Witless Bay shoreline occurrences . . . . . . . . . . . . . |  | | Report (issue) | | Barite, galena, pyrite, sphalerite Gangue minerals: Quartz Geologic description: The country rocks in the...intrudes the Hazelton rocks; quartz monzonite and granodiorite of the Hyder Quartz Monzonite batholith, which...consists of a shear zone that contains numerous quartz stringers, some of which contain barite, galena...Elliott, 1980, p. 58). One body of sulfide-bearing quartz is 10 feet long and 12-15 inches wide. Maas and...others (1995, p. 254) suggest that sulfide-bearing quartz fissure veins in Texas Creek granodiorite in the |  | | Book | | County. 68 to 100 mya Jurassic Basalt dikes near coast accompany rifting of Pangea. 201 mya Triassic...archipelagos and as mud on the ocean floor. The eastern margin of our ancient continent lay near Quebec...rocks were added, and granite-plenty of granite. No coast was nearby when the old ocean finally closed, and...it still is. And India, Antarctica, and Australia were attached to the eastern side of Africa. Maine was...The rocks of Maine are later additions to its eastern margin, which is now in southeastern Quebec. During |  | Cochrane, Guy R., Dartnell, Peter, Greene, H. Gary, Johnson, Samuel Y., Golden, Nadine E., Hartwell, Stephen R., Dieter, Bryan E., Manson, Michael W., Sliter, Ray W., Ross, Stephanie L., Watt, Janet T., Endris, Charles A., Kvitek, Rikk G., Phillips, Eleyne L., Erdey, Mercedes D., Chin, John L., Bretz, Carrie K. (2014) California State Waters Map Series: offshore of Half Moon Bay, California. Open-File Report 2014-1214. US Geological Survey doi:10.3133/ofr20141214 | Report (issue) | | alf Kgr Cretaceous fs fg fl m San Francisco Bay Area of Map 37°20' CALIF. MESOZOIC Jurassic ...deposited on uplifted marine-abrasion platforms along coast Qmt1 Marine-terrace deposits (Pleistocene)—Sand...deposited on uplifted marine-abrasion platforms along coast Qcl Tptu Qot adf Tpl ast Qms/Tp Qmt? Qcl...platforms along coast Qcl Fau Tp Qmt3 Qcl Qcl Tlo Qms/Tp lt) af Qms/Tp Qoa Half Moon Bay Qms/TKu...showing structural blocks within Offshore of Half Moon Bay map area. Pigeon Point block is separated from Santa |  | | Report (issue) | | granitic rocks that are principally granodiorite and quartz monzonite and that have ri greater than 0.7060...by Mesozoic granitic rocks that are principally quartz diorite INITIAL STRONTIUM ISOTOPIC COMPOSITIONS...right-lateral displacement is suggested for the Seal Cove-San Gregorio fault zone, a western branch of the...right-lat eral displacement is removed along the Seal Cove-San FIGURE 2.—Generalized geologic map of California...is remarkable. An 80-km restoration along the Seal Cove-San Gregorio-Palo Colorado fault zone would juxtapose | | Cochrane, Guy R., Dartnell, Peter, Greene, H. Gary, Johnson, Samuel Y., Golden, Nadine E., Hartwell, Stephen R., Dieter, Bryan E., Manson, Michael W., Sliter, Ray W., Ross, Stephanie L., Watt, Janet T., Endris, Charles A., Kvitek, Rikk G., Phillips, Eleyne L., Erdey, Mercedes D., Chin, John L., Bretz, Carrie K. (2014) California State Waters Map Series: offshore of Half Moon Bay, California. Open-File Report 2014-1214. US Geological Survey doi:10.3133/ofr20141214 | Report (issue) | | California State Waters Map Series—Offshore of Half Moon Bay, California By Guy R. Cochrane, Peter Dartnell, H...California State Waters Map Series—Offshore of Half Moon Bay, California: U.S. Geological Survey Open-File Report...Backscatter-Intensity Maps of the Offshore of Half Moon Bay Map Area (Sheets 1, 2, and 3) .....................and Visualization for the Offshore of Half Moon Bay Map Area (Sheet 4) ........................ 10 By...Seafloor-Character Map of the Offshore of Half Moon Bay Map Area (Sheet 5) ............................. |  | | Report (issue) | | Labrador are referred to as ‘Terra de Bacallaos’ — Land of the codfish. Most sixteenth-century maps depict...occurrences White Hills quarry Logy Bay amethyst occurrence Middle Cove, Outer Cove occurrences Torbay...Hill occurrence South Side Hills quarry Miner Point (Shoal Bay) mine Witless Bay shoreline occurrences Midnight...Gut copper occurrence Adams Cove occurrence Workington (Lower Island Cove) mine Silver Cliff mine Cuslett...Point barite occurrence Villa Marie quarry Collier Cove barite mine La Manche mine St. Lawrence fluorite |  | | Journal (issue) | | ALIFORNIA GEOLOGY . EARTHQUAKE BETWEEN MONTEREY = BAY, 2 MOON AND a ° oe a < Vv HALF ACTIVITY Stave...EARTHQUAKE ACTIVITY BETWEEN MONTEREY AND HALF MOON BAY - - ~ CALIFORNIA EARTHQUAKE SCIENCE NEWSLETTER “WHERE...As a result, Assemblyman Alan Sieroty, Beverly Hills, cat, with courtesy of USAF. California, University...POLAR area. (Photo USGS SELLS NOS CHARTS OF Bay U-2 photo Faults are emphasized in off- SOUTHERN... EARTHQUAKE ACTIVITY BETWEEN MONTEREY AND HALF MOON BAY, CALIFORNIA — =, G. B. Griggs Associate Professor |
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