 | | Journal (article/letter/editorial) | | Metamorphism of Metabasic Rocks from the Haast Schist Group of Southern New Zealand by A. F. COOPER Department...Department of Geology, University of Otago, Dunedin, New Zealand {Received 16 August 1971; in revised form 22 November...the paired metamorphic belt system of Southern New Zealand the eastern Wakatipu Metamorphic Belt has been...PjT ratio than the Tasman Metamorphic Belt to the west (Landis & Coombs, 1967). The Wakatipu Belt consists...consists dominantly of Mesozoic sediments of the New Zealand Geosyncline that have subsequently been metamorphosed |  | | Journal (article/letter/editorial) | | Amphiboles from Haast River, New Zealand A. F. CooPeR Geology Department, 0tago University, Dunedin, New Zealand...Abstract. A section across the Haast Schist Group in the Southern Alps of New Zealand shows a sequence of metamorphosed...in the H a a s t Schist Group, South Island, New Zealand. This has led to the erection of chlorite, biotite...Group, at H a a s t River, South Westland (see Figs. 1 and 1 a). At H a a s t River metamorphism approximates...Within the greenschists or amphibolites of South Westland there is a very considerable range in bulk rock |  | | Journal (article/letter/editorial) | | 1974); open squares: Haast River (Cooper and Lovering 1970); open triangles: New Hampshire (Brady 1974);...except in the case of Otago (western Otago and Haast River) where the early appearance of hornblende relative...relative stabilities of the amphibole components tremolite, glaucophane, edenite and tschermakite in the...paper an invariant point lacking glaucophane and tremolite ([G1, Tr]) has been added to the grid. Since this...Anorthite Chlorite Edenite Fluid Glaucophane Quartz Tremolite Tschermakite Zoisite Ab An Oh Ed F1 GI Qa Tr |  | | Journal (article/letter/editorial) | | Glenmacnass, Co. Wicklow, sillimanite, 763 Rosses district, Donegal, beryl, 328 Three Rock Mtn, San@ford...yttrotungstite, raspite, stolzite, 261 Bau mining district, Sarawak, antimonian idoerase, 894 Tapah, Kinta...Maaden-e-Tala, Kohrud, Kashan, dumortierite, 526 West Pakistan Swat, chromiam tourmaline, 756 Timurgara...India Bhopal, levyne, 527 Ghoriajor, Sundargarh District, Orissa, blanfordite, 3z Jothvad, Gujarat, blandfordite...blandfordite, 32 Kacharwali, Nagpur District, Maharashtra, blanfordite, 32 Khetri copper belt, Rajasthan |  | | Report (issue) | | NEW ZEALAND DEPARTMENT OF SCIENTIFIC AND INDUSTRIAL RESEARCH NEW ZEALAND GEOLOGICAL SURVEY 125th ANNIVERSARY...1865 -1990 NEW ZEALAND GEOLOGICAL SURVEY BULLETIN 104 ISSN 0077-9628 Minerals of New Zealand by G. L....initials should be G.T., not G.L. Lower Hutt, New Zealand 1990 I I Beach sand, alluvium, • terrace...Figure 1. Simplified geological sketch-map of New Zealand. 0 20 40 60 80 100 KM l INTRODUCTION It...Morgan's "Minerals and Mineral Substances of New Zealand" was published, as NZ. Geological Survey bulletin |  | | Journal (article/letter/editorial) | | PP. 6 4 - 7 I Piemontite schists from Haast River, New Zealand A. F. COOPER, B.Sc., Ph.D. Department...Department of Geology, University of Otago, Dunedin, New Zealand Piemontite-bearing metachert horizons are recorded...metamorphosed eugeosynclinalrocks at Haast River, in the Southern Alps of New Zealand. Piemontite schist mineralogical...are compared with lower grade occurrences in the Haast Schist Group. A chemical analysis yields a composition... SUMMARY. PIEMONTITE was first recorded in New" Zealand by Turner U933) who described quartz-muscovite-piemontite |  | | Journal (article/letter/editorial) | | Planetary Sciences, 79th and Central Park West, New York, New York 10024-5192 Downloaded by [University...Avenue, NW, P. O. Box 37012, NHB-119, Washington, District of Columbia 20013-7012 Abstract The lapidary...petrotectonics. Amphibole jade is nephrite, a tremolite-actinolite rock with a felted, microcrystalline...carvings and gems. Amphibole jade is nephrite, a tremolite-actinolite [Ca2(Mg,Fe)5Si8O22(OH)2] rock with...petrologic studies of jadeitite at Clear Creek in the New Idria serpentinite body of California (Coleman, 1961) |  | | Journal (article/letter/editorial) | | localities, and authors mentioned in the 27th List of new mineral names are not included in this index. Aberchirder...France, anal., opt., X-ray, 78I Aguilarite, New Zealand, anal., synthesis, 96I Akagan6ite, formation...with calcite and quartz, 48I Aratiatia, Taupo, New Zealand, rhyolitic lavas, 424 Ardelach, Nairnshire, granite...oriented exsolved titanomagnetite in, 49 Axinite, New Zealand, manganoan, anal., opt., 374 AXON (H. J.) and...see VR,~NA(S.), 837 development of garnet in, 649; West Pakistan, Basalt, Rdunion, anal., rhyodacite glass |  | | Journal (article/letter/editorial) | | An Empirical Model for the Relation Albite + Tremolite = Edenite + 4 Quartz Frank S. Spear Department...Post Pond Volcanics, New Hampshire and Vermont, and the Littleton Formation, New Hampshire, form the primary...zone come from a quarry on Mt. Finish near Lebanon, New Hampshire and have been described by Spear (1978...come from the Ammonoosuc Volcanics on the north and west flank of the Mascoma dome. Brady (1974) described...actinolitehornblende pairs from these localities and new analyses of plagioclase from Brady's polished thin |  | | Journal (article/letter/editorial) | | Oba (1980) found that miscibility gap between tremolite and pargasite exists at 1 kbar up to the temperature...metabasites (Scottish Highlands, U.K.; Haast River, New Zealand; New Hampshire, U.S.A.; and Mineoka, Japan)...(Hietanen, 1974); 5, New Hampshire (Brady, 1974); 6, Guyana (Choudhuri, 1974); 7, Hastings region (Sampson and... Noranda area (Allen and Goldie, 1978); 10, Haast River (Cooper and Lovering, 1970; Cooper, 1972). 196...czossite (or glaucophane) is shown by a dotted region. Note that ~M of crossite (or riebeckite) is greater |  | | Journal (article/letter/editorial) | | metamorphosed igneous rocks in the Hitachi metamorphic district, southern Abukuma Plateau. Electron microprobe...chemical analyses of hornblendes from the Hitachi district described by Tagiri (1973) have shown that their...which the coexisting amphiboles of the Hitachi district are plotted (Fig. 3 a). Figure 3 b shows the wet-chemically...wet-chemically analyzed hornblendes of the same district, for which total Fe is treated as FeO. The wet-chemical...metamorphic grades, HT303 and 417, the two phase region narrows as the Fe/Mg ratio decreases. For the pairs |  | | Journal (article/letter/editorial) | | interest among component is always impure Mg-tremolite accompanied by some mineralogists and petrologists...Robinson et al., 1982) and vides the projected tremolite content X ^ y (= 7-X// W or = 1- between Na- and/or...Miscibility gaps reached where the Al-poor member (tremolite) has a com- have so far been postulated in terms...1991; Smelik & Veblen, metric sub-gap' in the tremolite-rich composition range. This is 1993). The use...allows a comprehensive analysis of KEY WORDS tremolite; hornblende; pargasite; immiscibility; solvus |  | | Journal (article/letter/editorial) | | geothermobarometer, which involves glaucophane-edenite-tremolite-chloriteepidote-quartz-albite equilibria, has...isopleths involving glaucophane and Mghornblende/tremolite (Cotkins, 1987; Triboulet & Bassias, 1988; Triboulet...considerable influence on the equilibria involving tremolite and edenite (Triboulet, 1992). The composition...P-T variations during metamorphism. For this, a new thermobarometer has been proposed in a companion...this paper is to illustrate the application of this new thermobarometer to metabasic rocks from different |  | | Book (edition) | | Agate (Clent Hills). Topaz (Pegasus Bay). NEW ZEALAND MINERALS and GEMS by W. M. CAMPBELL, M.A.,...upon these sculptured features of a planet's face ? New Zealand's grainfields, whence come our daily bread...raised as continents. Down Westland way pebbles of gold have been found on river-course and seashore as weighty...amethyst, opal, carnelian and cinnabar are but a few of New Zealand’s precious pebbles. If of an even content...Finest quality Kaolin, Tairua River (A.). Bottom: Polished lignite. Haast River (W.O.). Troglodyte men |  | | Journal (article/letter/editorial) | | the higher PIT facies series (e.g. Franciscan and New Caledonia), whereas reverse relations occur in the...lower PIT facies series (e.g. Sanbagawa and New Zealand). Available data also indicate that at low-temperature...of the jadeite-glaucophane type facies series. In New Caledonia blueschists, Ca-Na pyroxenes are also common;...the Sanbagawa belt, Japan and South Island, New Zealand, Ca-Na pyroxene and glaucophane are not common;...decreases from Ward Creek, New Caledonia, through Sanbagawa to New Zealand. This relation is consistent |  | | Journal (article/letter/editorial) | | 5Ca2MgsSisO22(OH)2 + 14NazMg3A12SisOz2(OH)2 tremolite glaucophane = 23 NaA1SiaO 8 + 5 NaCazMgsA1SivO22(OH)2...reduces to NaA1Si30 8 + Ca2MgsSisO22(OH)2 albite tremolite = NaCa2MgsA1SivO22(OH)z + 4SiO 2, edenite quartz...localities in the metamorphosed Post Pond Volcanics, New Hampshire and Vermont; and (2) analyses from numerous...localities is a roadcut along U.S. Route 5 in the south-west corner of the Mt. Cube Quadrangle, Vt. Phase relations...Figure 8 may be used for geothermometry in the region of approximately 450~ ~ C with the understanding |  | | Journal (article/letter/editorial) | | 584 S. M A R U Y A M A ET AL. forms a P-T region which is further complicated by the compositional...1974; Apted & Liou, 1983) have delineated a P-T-fOi region for the multi-phase transition from greenschist...press). In general, metamorphic grade increases from west to east, and three metamorphic zones—A, B, and C—were...585 586 S. M A R U Y A M A ET AL. eastern coast line of Yap and Tomil Islands. The pressure estimate...Karmutsen metavolcanics by Kuniyoshi & Liou (1976), New Zealand by Kawachi (1975) and the Sanbagawa belt by Toriumi |  | | Journal (article/letter/editorial) | | COMPOSITION OF CA-AMPHIBOLE FROM WESTERN OTAGO, NEW ZEALAND Analyses are available for Ca-amphiboles in...Locality map for specimens from western Otago, New Zealand. Metamorphic zones are based on maps by Mutch...Al lr plot of amphiboles from western Otago, New Zealand. Plots represent formulas with maximum Fe2O3...occur with some amphiboles from the Bessi-Ino district of the Sanbagawa terrane reported by Banno (1964)...Grapes (1975). Edenites reported from the Sibukawa district of the Sanbagawa belt (Seki et ah, 1959) conflict |  | | Journal (article/letter/editorial) | | Miscibility of Tremolite and Hornblende in Progressive Skagit Metamorphic Suite, North Cascades, Washington...1973; in revised form 6 March 1974) ABSTRACT Tremolite-hornblende relationships are reported for high...dolomites show continuous solid solution between tremolite and highly aluminous hornblendes ranging from... Altt,tli/Aliv approximates 1-73 both in the tremolite and hornblende fields, as against 1-44 at high...at high grade). The compositional gap between tremolite and hornblende analyses from the lower grade rocks |  | | Journal (article/letter/editorial) | | allows the provisional assignment of a P-T stability region for barroisitic amphibole in metabasaltic rocks...non-existent in Franciscan rocks of the California Coast Ranges. Valtournanche. The early Alpine high-P paragenesis...glaucophane + riebeckite-arfvedsonite pair from New Caledonia, it was not possible to resolve the question...Tables 4, 5); Ernst et al. (I97O, Tables 26, 28-3o). West-central California: Lee et al. (1966, Table 2);...compositions evidently range continuously from tremolite-actinolite to aluminous, alkalic hornblendes (Ernst |  | | Book | | 411 • New Hebrides NewCaled~ • • Norfolk I. Lord Howe I. • SOUTH PACIFIC OCEAN SEA NEW ZEALAND... / I I SOUTH-WEST PACIFIC BASIN I , .. The Geological Structure of New Zealand a volume in the...the Oligocene, Landon Limestone Photograph: New Zealand National Publicity Studio photo J'ublished...STRUCTURE OF NEW ZEALAND J . T. Kingma I , • THE GEOLOGICAL STRUCTURE OF NEW ZEALAND JACOBUS T. KINGMA...Wiley-lnterscience Publication JOHN WILEY & SONS New York• London• Sydney• Toronto I \ • ' Copyright |  | | Journal (article/letter/editorial) | | progressive metamorphism of basic rocks (estuary of the River Vilaine, South Brittany, France) CI. TRIBOULET,...metamorphism. When applied to basic rocks from the River Vilaine area, this method allows us to construct...France; stacking effect during collision processes; tremolite/edenite/magnesio-hornblende equilibria. INTRODUCTION...simple reactions between glaucophane, edenite and tremolite may be used to demonstrate the changing chemistry...to show how a set of simple reactions beween tremolite/actinolite, actinolitic hornblende and Mg-hornblende |  | | Journal (article/letter/editorial) | | occupy the core of an antiform overturned toward the west, consequently the grade of metamorphism does not...sides of the reaction by equilibrating under the new metamorphic conditions, whereas chlorite and possibly...Vourlidia area. The assemblages calcitedolomite-tremolite-talc-quartz and calcite-tremolitetalc-quartz have...and Hoffer (1973) in the Damara belt. Talc and tremolite may form in siliceous carbonate rocks according...univariant curve of the six-phase equilibria talc-tremolite-dolomite-calcite-qz+ CO2 (Puhan and Metz 1973) |  | | Book | | Press Elasiir Waves in Layered 111edia Gram and West lnrerpre101ion Theory in Applied Geophysics Griffiths...of California, Berkeley McGRAW-HILL BOOK COMPANY New York San Francisco St. Louis London Toronto ...crystalline rocks. A crystalline con1plex in southwest New Zealand was once described as a diorite batholith. Its...calciun1 and magnesium silicates such as diopside, tremolite, and grossularite. 4. Basic: derivatives of basic...serpentine and talc, with carbonates, chlorite, and tremolite as possible minor constituents. The parent rocks |  | | Journal (article/letter/editorial) | | isograd, suggestive of disequilibrium between the new, progressively more aluminous hornblende and metastably...northward increase in metamorphic grade across the region, whilst Powell and Ghent (1996) later proposed...the east of the study area to 2.5–3.0 kbar in the west (Pattison and Vogl 2005). 13 18 Page 4 of 24...The pattern of isograds in this area and in the region south of the Bonnington and Nelson plutons suggests...coupled substitutions relative to an end-member tremolite composition can be calculated using the following |
|
