 | García, M., Maksaev, V., Townley, B., Dilles, J. (2017) Metallogeny, structural evolution, post-mineral cover distribution and exploration in concealed areas of the northern Chilean Andes. Ore Geology Reviews, 86. 652-672 doi:10.1016/j.oregeorev.2017.01.025 | Journal (article/letter/editorial) | | Universidad de Chile. Av. Tupper 2007, Santiago, Chile. (2) Departamento de Geología, Universidad de Chile, Plaza...Plaza Ercilla 803, Santiago, Chile. (3) College of Earth, Ocean and Atmospheric Sciences, Oregon State University... Quellaveco and Toquepala, whereas in northern Chile, the main deposits are Mocha, Cerro Colorado, Spence...130 km in southern Peru to 30-50 km in northern Chile, and includes mainly porphyry Cu deposits, with...Maksaev et al., 2007). The foremost deposits are in Chile (CollahuasiQuebrada Blanca, Chuquicamata, Escondida |  | | Journal (article/letter/editorial) | | COMPOSITIONS OF SWELL-SHRINK CLAYS FROM GUANGXI PROVINCE, CHINA ZHAOTIAN ZENG1 * , HAIBO LU1,2, YANLIN...k clays are widely distributed in the Guangxi province of southern China in the form of expansive soils...that the expansive soils were composed mainly of quartz (Qz), montmorillonite (Mnt), illite (Ilt), and...type of clay is distributed widely in the Guangxi province of southern China in the form of expansive soil...physicalmechanical properties of soils (Mitchell and Soga 2005). As early as the 1950s, Norrish (1954, 1961) |  | | Report (issue) | | Association: Alunite, natroalunite, huangite, quartz (Okumanza, Japan); natroalunite, woodhouseite (Mt...Indio-Tambo district, east of La Serena, Coquimbo, Chile. In the Fancel-Lap̌uşna caldera, Gurghui Mountains... N. Otsuka, J.-I. Hirabayashi, K. Okada, and H. Soga (1987) Synthesis of minamiite, Ca0.5 Al3 (SO4 )2...of the alunite group from the Coquimbo region, Chile. Amer. Mineral., 77, 1275–1284 [IMA definition of |  | | Journal (article/letter/editorial) | | Buessem [9], and also Soga and Anderson [ 10] ; (e) lime with 1.8% porosity, see Soga [ 11 ] ; (f) hematite...89% porosity, see Chung and Simmons [ 13] ; (h) quartz with 0.15% porosity, see Chung and Simmons [ 13]...value of (dKs/dP) = 4.87 while in another report by Soga and Anderson [10, p. 2987] it gives 5~08. To avoid...elasticity data by this writer for periclase, corundum, quartz, rutile, and forsterite. EffeCt of the porosity...Chung and Simmons [33]. (c) Soga [11]. (d) Soga and Anderson [10]. (e) Soga [351. (f) Schreiber and Anderson |  | | Journal (article/letter/editorial) | | collaboration with colleagues Edward Schreiber and Naohiro Soga, Orson exploited the techniques of physical acoustics...Schreiber from Alfred University in 1963 and Naohiro Soga from the Research Division of American Standard...high-pressure experiments and Soga the high-temperature experiments. By 1965, Soga and Schreiber, as postdocs...these studies were led by Ed Schreiber and Naohiro Soga, along with visiting scientists (Mineo Kumazawa...Liebermann, and Soga [19]. Another experimental technique adopted and improved by Naohiro Soga and associates |  | | Journal (article/letter/editorial) | | were measured, but the olivine, zircon, topaz and quartz specimens were cut at such oblique angles to 1...(5.94) b 100.4 Table 2 (continued) Specimen f Quartz 4.07 x 353 - Periclase 2.98 mm 100.13 100...(1977) 24.6_+ 1.6 23.7 27.1 a, 27.2 b This study Soga (1967) Liberman and Gandall (1952) Skinner (1956)... 12. Sapphire Periclase Garnet b Hematite Quartz Zircon c Topaz 2,487 [14] 3.986 [15] 780 [29]...Anderson (1966) Blanchard and Varshni (1967) Soga (1967) Soga and Anderson (1967) Anderson et al. (1968) |  | | Journal (article/letter/editorial) | | Whitman, 1969; Bennett et al., 1991b; Mitchell and Soga, 2005). We compare the mechanical behaviour of different...together (Köster and Schwertmann, 1993; Mitchell and Soga, 2005). Illites display a sheet-like configuration...with irregular edges and thicknesses (Mitchell and Soga, 2005) and a bent or folded shape (Lagaly and Köster...clay grains (Bennett et al., 1991a; Mitchell and Soga, 2005). These domains may be stacked in different...bookhouse, etc. (Bennett et al., 1991a; Mitchell and Soga, 2005) or by their mode of association (edge to |  | | Journal (article/letter/editorial) | | periclase, corundum, forsterite, fayalite, alpha-quartz, rutile, germania, and cassiterite are compared...(1969) for apatite, McSkimin et al. (1965) for quartz, Weidner et al. (1982) for stishovite, Suzuki et...data are those of Schreiber and Anderson (1966a), Soga and Anderson (1966), and Spetzler (1970). The data...pressure data were not plotted on the figure.) The Soga and Anderson (1966) data were taken between 298...pressure measurements described above. Both the Soga and Anderson and the Spetzler data are in excellent |  | | Catalog/List | | .00 4. ANTLERITE. Chuqutcamata , Antofagasta , CHile." Pure bright ~reen fibrous vein-section with both...hexagonal crystals to 2 mm in si ze"scattered on quartz covering slate veinstuff . 3x2x1t " ,"£7 .00. Specimen...hexagonal Crystals to 3 mm in size thic~ly cOl/ering quartz matrix. ,1-tx1t ", £4.7Sp , , 6. AURICHALCITE...morphLte. 2x 1~X 1t" " £5.00 7. AXI NITE. oritisH RflP Quarry , Meldon'; Devon. SHarp lustrous brown ~rystals"to...Small sharP li ght green cryst a l s scattered, on quartz and hsmatit e matri x. 2~x2 " ' , £5 . 00 15. OUSTAMITE; |  | | Journal (article/letter/editorial) | | betweenthermochemical andphasestabilitydatafor the quartz-coesite-stishovite transformationsl J. Scorr WEe...with the quartz-coesiteand coesite-stishovite transformationsin the systemSiOr.For the quartz-coesite...manyyears.In particular,theelastic properties of quartz and two high-pressurepolymorphs,coesiteand stishovite...paperthe availablephasestabilitydatafor both the quartz-coesiteand coesite-stishovite transformationsare...freeenergy,enthalpy,and entropyassociated with the quartz-coesitetransformationare qomputed, and comparedto |  | Peacor, Gejing Lib Donald R., Essene, Eric J., Brosnahan, David R., Beane, Richard E. (1992) Walthierite, Ba0.5[]0.5Al3(SO4)2(OH)6,and huangite, Ca0.5[]0.5Al3(SO4)2(OH)6, two new minerals of the alunite group from the Coquimbo region, Chile. American Mineralogist, 77 (11-12) 1275-1284 | Journal (article/letter/editorial) | | minerals of the alunite group from the Coquimboregion, Chile Gn.rrNcLr, DoN.ll,oR. Pr.q,con,Enrc J. Essrnn Department...gold, silver, and copper deposit, Coquimbo region, Chile, respectively.Walthierite, Bao,!o ,Al3(SOo)r(OH)u...Al3(SOo)r(OH)u, is associatedwith alunite,jarosite, baite, quartz, and pyrite in veins. Huangite, CaortrorAlr(SOo)r(OH)6...ordering of Pb2* and vacanciesin M Coquimbo region, Chile. The Ca end-member has been sites in plumbojarosite...New Minerals and associatedwith alunite, barite, quartz, pyrite, and jarosite Mineral Names (CNMMN), International |  | | Journal (article/letter/editorial) | | constraints within the framework of plate tectonics. Quartz eclogite, olivine eclogite, peridotite and dunite...model composition of the oceanic lithosphere: (1) quartz eclogite, a high-pressure polymorph of olivine...model quartz eclogite is equivalent to an average ocean-ridge basalt [5], consisting of 5 wt% quartz, 45%...3 parts quartz eclogite and 1 part dunite, and the peridotite is a mixture of 1 part quartz eclogite...systems is considered: dry and amphibole-bearing quartz eclogites; dry, phlogopitebearing, and amphibole-bearing |  | | Journal (article/letter/editorial) | | of the density procedure with two single-crystal quartz discs (130mg and 16mg) indicates that the measured...atmospheric pressure and corroboration is desirable (N. Soga, personal communication, Sept. 1971). Our Op data...hot-pressing procedure. In the case of a-Mg2GeO4, Soga [23] measured Up at atmospheric pressure for two...[21 ]. Polycrystal: Chung [221. c. Polycrystal: Soga [23]. d. Single crystal: Manghnani [24] Polycrystal:...z u m i , M. K u m a z a w a , Z, Pros a n d N. Soga, and f r o m t h e critical c o m m e n t s o f |  | | Journal (article/letter/editorial) | | calcium oxide (5.26) [Soga, 1968], but close to the values for ~ quartz (6.40) [Soga, 1968], and rutiles...(1968) Anderson, O.L., Schreiber, E., Liebermann, R., Soga, N.: Elastic constants of some minerals of interest...RbI, J. Phys-. Chem. Solids, 25, 801-814 (1964) Soga, N.: Elastic properties of CaO under pressure and...(1968) Soga, N.: Temperature and pressure derivatives of the isotropic sound velocities of a-quartz, J. |  | | Journal (article/letter/editorial) | | OF THE ELASTIC PROPERTIES OF POLYCRYSTALLINE QUARTZ AND RUTILE D.H.CHUNG and Gene SIMMONS Department...hydrostatic pressure to 7 kb for polycrystalline quartz and rutile yield the following values of pressure...isothermal pressure derivative: Property Units Quartz (a £nVp/aP)T,p= 0 (ag.nVs/OP)T,p= 0 mbar -1 mbar...elastic properties of hot- pressed polycrystalline quartz and rutile as a function o f pressure. Our measurements...Specific information about each specimen follows: Quartz: density at 298°K, 2.645 g/cm 3 (0.2% porosity); |  | | Journal (article/letter/editorial) | | the average measured value o f Ko for the solid a-quartz [ 8 - 1 0 ] (see table 1) which is the standard...K~ a-quartz standard K~)= 6.4; Po = 2.65 PO (x) Theory ~K~/K'o Po (stan- K~) dard) a-Quartz 6.5 (9);...predicted by (2) for A1203 using the parameters for a-quartz. This is shown in table 1 and fig. 1. The fact...K'(p/po) with density for two cases; A: Values for a-quartz used in eq. (2); B: Values for forsterite used...L. Anderson, E. Schreiber, R. Liebermann and N. Soga, Some elastic constant data on minerals relevant |  | | Journal (issue) | | page 2 Fig. 1 Barrerite, 21/4 inches long, with quartz, Kuiu Island, Alaska, Gary McWilliams collection...not question that barrerite is found in the large quartz pockets that have been covered by seawater. I do...finger -stalactl!cs-of sparkly, milky white. dru~ quartz: many of the barrcrite specimen arc quite ac 1hc1i~...the matrix of light colored limeston~ and drusy quartz m_akcs for attractive specimens. These specimens...crystals scattered over a heavily coated quartz cry Ial matrix, the quartz crystals being also prismatic, nearly |  | | Journal (article/letter/editorial) | | exceptionally high velocltles, and the a-quartz to P-quartz phase transltlon involves an increase m velocity...to those of the rutrle structure phase For the a-quartz phases, the ub ratios are similar, but the densities...in 4-coordination m ohvine, spmel, pyroxene, a-quartz and coesrte structures, and in 6coordmatron m the...(excluding cu-quartz-coesite) is between about 1 .l (coestte-stishovite) and 1.7 (GeOz cw-quartz-rutile)....[ 111, giving X, = 1.55 and 1.5.0. Anderson and Soga [ 181 suggested that h, should have a value of about |  | | Report (chapter) | | h i n - - t o the east is the Basin and Range province with thin crust and high relief; to the west,...(I-3)). T h e situation in the Basin and Range province is clearly rather different both from that in...of a-quartz (Anderson & Sehreiber i965; Schreiber i967; Schreiber & Anderson r966A, B, I967; Soga I967;...I967; Soga & Anderson i966; Soga, Schreiber & Anderson I966). of velocity for composition I, above, and... and that for the crust less t h a n I5.57~ (a-quartz); thus the selection of gradients maximizes the |  | | Journal (article/letter/editorial) | | the equilibrium reaction ferrosilite = fayalite + quartz, (b) (see Fig. 2), which was investigated by...reaction (b) in which the data for fayalite and quartz are from ROBIE et al. (1982a) and ROBIE et al....~~~~__~~~~~______~______~_____~~~~~~~~~~~~~ 1. Quartz Si02 -910700 128.47 -8 41.46 -1576.9 0.0 2...0599 90.194 2. Corundum A12o3 Sources of Data 1) Quartz: Robie et al. (1978). 2) Corundum: Robie et al...converted Into the Berman and Brown Low quartz changes to high quartz at 848 K (9). transition energy of 476 |  | | Book | | Geomechanics from Micro to Macro Editors: Kenichi Soga, Krishna Kumar, Giovanna Biscontin and Matthew Kuo...Geomechanics from Micro to Macro Editors Kenichi Soga, Krishna Kumar, Giovanna Biscontin & Matthew Kuo...978-1-138-02723-7 Geomechanics from Micro to Macro – Soga et al. (Eds) © 2015 Taylor & Francis Group, London...hydrate soil sediments Y. Yu, Y.P. Cheng, X. Xu & K. Soga 189 195 201 207 A study on a shape effect in...geomaterial using Lattice Element Method J.K.-W. Wong, K. Soga, X. Xu & J.-Y. Delenne 417 Coupled hydro-thermo-mechanical |  | | Journal (article/letter/editorial) | | for glassy and liquid GeO2 from the literature (Soga 1969; Kurkjian et al. 1972; Scarfe et al. 1987)...dilatometry was performed with a Netzsch| T M A 402 quartz-rod dilatometer. The sample, its thermal history...glassy GeO2 has been measured at low temperature by Soga (1969) using ultrasonic (20 MHz pulse superposition)...SI units Scarfe et al. 1987 b Sekiya et al. 1980 Soga 1.969 d Kurkjian et al. 1972 Richet et al. 1982...High temperature Brillouin scattering in fused quartz. J Appl Phys 45:5324-5329 Capps W, Macedo PB, O'Meara |  | | Journal (article/letter/editorial) | | (N14) and a dominantly silty to fine sandgrained quartz/feldspar-rich sample with some clay fraction (N18)...component system (smectite [Sm], illite [Il], and quartz [Qtz]). Sample N13 is rich in clay minerals and...possesses a high granular fraction (containing quartz, feldspar, and tephra) and reflects the turbiditic...quantitative XRD showing major mineral content. Quartz + feldspar Smectite + montmorillonite Illite...and (N18) contain both large fractions of illite, quartz and feldspar. Although mineralogically similar |  | | Journal (article/letter/editorial) | | Murnaghan equation [6] from the ultrasonic data of Soga [7] We refer that garnet remains stable under shock...could also not be indexed as any combination of quartz (a and 3), coeslte, stishovite, fayahte, rmgwoodite...5757 [6] F Btrch, J Geophys Res 57 (1952) 227 [7] N Soga, J. Geophys Res 72 (1967) 4227 [8] R K Verma, J |  | | Journal (article/letter/editorial) | | Geological Society of America Memoirs, 97, 75-96. Soga, N. (1968) The temperature and pressure derivatives...derivatives of isotropic sound velocities of a-quartz. Journal of Geophysical Research, 73, 827829. Spry, P...and Gilbert, M.C. (1969) The fayalite-magnetite-quartz assemblage between 600°C and 800 °C. American Journal |
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