 | | Journal (article/letter/editorial) | | Wairau ValleyâNew Zealand by G. A. CHALLIS N.Z. Geological Survey, Lower Hutt, New Zealand High-temperature...developed at the contact, together with wollastonite, grossular, and hydrogrossular. Chemical changes in the amphiboles...Blenheim in the north-east of the South Island of New Zealand (see Challis, 1965, fig. 1). It is at the southern...includes the well-known ultramafic intrusion of Dun Mountain. A detailed survey was made of about 8 square...intrusion and as it occurs in the same lens as Dun Mountain, it has always been considered as such (Hess |  | | Journal (article/letter/editorial) | | The Origin of New Zealand Ultramafic Intrusions by GWYNETH A. CHALLLIS New Zealand Geological Survey...South Island of New Zealand, and include the large masses of Dun Mountain near Nelson, Red Hills in the...the Wairau Valley, and Red Mountain in north-western Otago. Other, relatively small and almost completely...relatively unserpentinized ultramafic intrusions at Dun Mountain and Red Hills. A smaller isolated mass occurs...Manchester on June 2, 2015 ABSTRACT Dun Mountain, Red Hills, and Red Mountain, are three of the largest ultramafic |  | | 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) | | Longshore Migration of Beach Placers in Western New Zealand Thomas W. Ritchie,1,2 James M. Scott,2,â and...Dunedin 9016, New Zealand Department, University of Otago, Dunedin 9054, New Zealand Abstract With...from beaches along 427 km of the Westland coast of New Zealandâs South Island with the purpose of establishing...Westland coast on the western South Island of New Zealand (Fig. 1A). This is an area of extreme rainfall...study. Geologic Setting The South Island of New Zealand is part of the large and mostly submerged 4.9 |  | | Report (volume) | | ________ __ ___ __ _______ ______________ ___ Baldy Mountain, Oreg_ _ _______________ _____ _______________...Oregon____________ 5. Field sketch of locality at Baldy Mountain, Oreg., showing locations of analyzed specimens...progressive chemical variation of samples from the Baldy Mountain area, Oregon______ 7. Field sketch of locality...spectrographic analyses of samples from Baldy Mountain area, Oregon (loc. 10)________________________...problem while studying the jadeite deposits within the New Idria serpentinite mass in the central part of the |  | | Journal (article/letter/editorial) | | 296-328] PETROLOGY AND EVOLUTION OF THE RED MOUNTAIN OPHIOLITE COMPLEX, NE\V ZEALANDt JOHN M. SINTON*... University of Otago, Dunedin, New Zealand ABSTRACT. The Red Mountain area comprises a relatively coherent...relations at Red Mountain, the "high-temperature contact" aureole around the Nelson Red Hills mass is...Overall petrology and stratigraphy indicate that Red Mountain ophiolite generation was mainly by processes similar...around Red Mountain in northwest Otago, :New Zealand includes a portion of the Permian Dun Mountain ophiolite |  | | Journal (article/letter/editorial) | | from Roding River, Dun Mountain area, Nelson, New Zealand, consisting of grossular,and diallage, and sometimesalso...analysis (D) of a prehnite-zoisite aggregatefrom a New Zealand gabbro shows close similarities with that of...Ertnite-zoisiteaggregate in alteredgabbro,MacquarieIsland,New Zealand(Grange,1s27) Anal.: (alsoincludes F. T. Seelye...recognizedin rodingite from the type area in New Zealand (Hutton, 1943). Xonotlite occurs as veins and...with regard to their water content: most of the new analysesreport HzO* around 2.65 to 2.85/6 which would |  | | Journal (article/letter/editorial) | | introduced by Marshall (1911) for diallage-prehnite-grossular rocks that occur in the form of veins in serpentinites...valley of the Roding River in the Dun Mountain range, New Zealand. Later, this term was transferred by...datolite-prehnite-hornblende composition; 3 - prehnite-grossular-gibbsite-chlorite rock; 4 - cherty siltstones...Photomicrograph of rodingite of grossular-gibbsite-chlorite composition, x 85. 1 - grossular, 2 - gibbsite, 3 - chlorite...chemical composition (fig. ID, and table) in the region of contact altera tions of the serpentinites: |  | | Journal (article/letter/editorial) | | Ldngban, joesmithite, 876; hyalophane, 914. Nya Zealand, Ldngban, hyalophane, 914. Philipstad, Wermland...Goldongri, Panchmahal, Gujarat State, manganoan grossular, 1032. France Jothwad Hill, Panchmahal, wol|astonite...mines, Singhbhum, amphibolite, Kadov, Moravia, grossular, 389. chlorite-schist, mica-schist, epidiorite...Catron City, New Mexico, bixbyite, 976. Franklin, New Jersey, ganophyllite, Franklin Furnace, New Jersey,...Kansas, pyrope, 459. Nelson Creek, Skamania County, Washington, heulandite, 6~:. New Hampshire, lithian |  | Coombs, D. S., Kawachi, Y., Houghton, B. F., Hyden, G., Pringle, I. J., Williams, J. G. (1977) Andradite and andradite-grossular solid solutions in very low-grade regionally metamorphosed rocks in Southern New Zealand. Contributions to Mineralogy and Petrology, 63 (3) 229-246 doi:10.1007/bf00375574 | Journal (article/letter/editorial) | | Andradite-Grossular Solid Solutions in Very Low-Grade Regionally Metamorphosed Rocks in Southern New Zealand...GeologyDepartment, Universityof Otago, Dunedin,New Zealand Abstract. Almost pure andradite and intermediate...address: P r e s e n t address." New ZealandGeologicalSurvey,Rotorua, New Zealand Department of Geology,Universityof...ranging from almost pure andradite to almost pure grossular in alpine serpentinites have also long been known...rocks in southern New Zealand we have recognized andradite and andradite-grossular solid solutions at |  | | Journal (article/letter/editorial) | | Several Lithostratigraphic Terranes, Southern New Zealand a W. G. Ernst & Katsushi Shirahata b a Department...Several Lithostratigraphic Terranes, Southern New Zealand, International Geology Review, 38:12, 1086-1097...Several Lithostratigraphic Terranes, Southern New Zealand W. G. ERNST Department of Geological and Environmental...South Island, and southern most North Island, New Zealand, in an attempt to identify contrasting provenances...in unstable rock fragments, aluminosilicates, grossular-andradite garnets, and chlorites as well as amphiboles |  | | Journal (article/letter/editorial) | | have an important effect on many propertiesof this region,particularly includingthe seismicvelocities. 1...per cent or less.These analysesare from Dun Mountain, New Zealand [Reed, 1959]; Junsterklumpen,Sweden, [Du...higher-grade continuity, and, furthermore, if this region amphibolitefaciesmetamorphismin the crustal should...of two averagesof severalnodules from each of two new South Wales localities [Wilshire and Binns, 1961]...content) 5.9 â˘70% pyrope 12% almandine[ Garnet 6% grossular ⢠Rutile [ 13.3 % â˘ndradite ] Chromite-magnetite |  | | Journal (article/letter/editorial) | | James D . Dana (System of Miner alogy, 5th ed., New Y o r k , 1868, p. xxxiv) that names of rocks should...(Atlantic Ocean), corsite (Corsica), dunite (Dun Mountain, New Zealand), helsinkite (Helsinki, Finland), italite...monzonite (Monzoni, Tyrolean Alps), nelsonite (Nelson County, Virginia), nevadite, norite (Nor way)...also has been made of portmanteau words, where a new term is created by combining parts of existing words:...dismicrite [disturbed microcrystalline], grospydite [grossular + pyroxene + disthene, kyanite], kamafugite [katungite |  | Wang, YuâWang, Xie, Hongjing, Guo, Boran, Shi, Yu, Zhou, Guochao (2020) Genesis of pale microgranular masses in ophiolitic chromite deposits in northern Xinjiang: Analysis of the microâarea composition of altered minerals using LAâICPâMS. Geological Journal, 55 (3) 2185-2207 doi:10.1002/gj.3748 | Journal (article/letter/editorial) | | peridotites in many ophiolite-bearing areas of New Zealand and northern Xinjiang, an important part of...& Rodingite, which was first discovered in New Zealand, is a type of Dobrestov, 2004; Li et al., 2012;... uniformly distributed and dominated by some grossular-andradite gar- the HREEs [(La/Sm)N = 0.01â0.06...> 2 (2.73â4.08), tively correlated. The two grossular samples (S9-29a and (La/Yb)N > 2 (2.36â7.41)...crystalloblastic garnet sample Ak-14c is a Ca- and Al-rich grossular (Gro endmember) with a P relatively high total |  | | Journal (article/letter/editorial) | | 4 o Xonotlite and rodingites from Wairere, New Zealand J. P. O ' B R I E N and K. A. R O D G E R S Department...Department of Geology, University of Auckland, New Zealand SUMMARY. Xenoliths of eucritic gabbros in an...'grossularite-diallage' phases associated with the Dun Mountain massif. His definition was based upon the rock...locality in the upper reaches of the Roding River, Nelson. Lauder (I965, p. 485) redefined rodingite to include...terrains that contain considerable amounts of grossular, diopside and serpentinite and may contain a greater |  | | Journal (article/letter/editorial) | | and the Origin of Titanium-Rich Mineral Suites at New Idria, California M. R. VAN BAALEN1 Department of...peculiar mineral suites are associated with the New Idria serpentinite, California. Previously some of...described as metasomatic in origin. This paper presents new data on the compositions and parageneses of these...passage of the Mendocino Triple Junction underneath New Idria at about 12 Ma. Ti-bearing garnets associated...albite, apatite, and other accessory minerals in the New Idria syenite, a small group of stocks associated |  | | Journal (article/letter/editorial) | | weathering on heavy minerals from the Cascade River, New Zealand Andrew C. M o r t o n 1 and David Smale 2 1 British...K.) New Zealand Geological Survey, University of Canterbury, Private Ba$ Christchurch (New Zealand) Received...weathering on heavy minerals from the Cascade River, New Zealand. Sediment. Geol., 68" 117-123. The effects of...from the Cascade-Martyr river system 0Vestland, New Zealand) and its associated beach. These rivers drain...the southern part of the Westland district of New Zealand. It has one major tributary, the Martyr River |  | | Journal (article/letter/editorial) | | 27 gabbroids and 7 metagabbroids from the same region of the equatorial Mid-Atlantic , Atlantic. The...(Coleman, 1967) and 290 ~ to 450~ for those from New Zealand (O'Brian and Rodgers, 1973). 3. The presence...from 430 ~ to 470~ for the rocks from WMrere (New Zealand). These temperature ranges should be taken only...process t h a n for the rocks from California and New Zealand. This would be in agreement with Seki (1965)...pressure, hydrogrossular cannot form". But whether grossular or hydrogrossular forms will depend not only on |  | | Journal (article/letter/editorial) | | in the Darbut Ophiolitic MĂŠlange, West Junggar: New Insights into Rodingitization and Tectonic Evolution...in the Darbut Ophiolitic MĂŠlange, West Junggar: New Insights into Rodingitization and Tectonic Evolution...describe altered gabbros in the Dun Mountain serpentinites, New Zealand. In a general sense, rodingites...aphanitic textures; they generally consist of grossular, diopside, chlorite, and titanite (Figure 4c,d);...mainly include apatite, magnetite, and ilmenite. Grossular and diopside generally occur as cloudy Minerals |  | | Journal (article/letter/editorial) | | useful insights into metamorphism and metasomatism. New field and IP mineralogical data indicate the formation...dillage-prehnite-grossular garnet in the CR form of veins in the serpentinites of the Roding area in the Dun Mountains...Mountains of New US Zealand. This was followed by a note on another occurrence in New Zealand at the AN...AN Nelson area by Grange (1927). Gresens (1969) was the first to connect the formation of rodingites...pyroxene rodingite from the Hafafit area is CE grossular-andradite which can be also seen on the mole% |  | Mubarak, Heba S., Azer, Mokhles K., Surour, Adel A., Moussa, Hilmy E., Asimow, Paul D., Kabesh, Mona M.L. (2020) Mineralogical and geochemical study of rodingites and associated serpentinized peridotite, Eastern Desert of Egypt, Arabian-Nubian Shield. Lithos, 374. 105720pp. doi:10.1016/j.lithos.2020.105720 | Journal (article/letter/editorial) | | calcium-rich rocks ur hosted by serpentinites in the Dun Mountain ultramafic complex. In general, rodingite is...chips of the fused-glass beads are dissolved in new 50 mL polypropylene tubes by refluxing in 2 mL of...cluster at the Al-rich and Fe-rich ends of the grossular-andradite solidsolution series. The electron microprobe...molecule in our garnet end-member fractions. Grossular is composed mainly of SiO2 (38.4-39.8 wt.%) and...shows a lower apparent analytical total than grossular because the Fe in this ro mineral is dominantly |  | | Journal (article/letter/editorial) | | Garnet is nearly euhedral (~0.2 mm) spessartine-grossular rich with an appreciable uvarovite component;...samples 118 and 116, garnet compositions are grossular-almadine rich with no uvarovite 32 BEANE AND...presence of abundant, coarse-grained lawsonite and grossular-rich garnet in the samples lead us to conclude...rodingites associated with the Dun Mountain ultramafics in New Zealand, the first stage being Ca rich...OâNeil, J., 1978, Present day serpentinization in New Caledonia, Oman, and Yugoslovia: Geochemica et Cosmochemica |  | Xie, Hong-Jing, Wang, Yu-Wang, Guo, Bo-Ran, Shi, Yu, Zhou, Guo-Chao (2019) Characteristics and petrogenesis of the âPale Microgranular Massesâ in ophiolite-type chromitites in northern Xinjiang. Ore Geology Reviews, 115. 103168 doi:10.1016/j.oregeorev.2019.103168 | Journal (article/letter/editorial) | | peridotites in ophiolite areas in Japan and New Zealand, they have been neglected as tectonic inclusions...2014). Rodingite, which was first discovered in New Zealand, is a white and gabbro-like rock that commonly...1911). Rodingite is mainly composed of diallage, grossular and prehnite, is considered a special metasomatite...assemblage. In this contribution, we present and discuss new petrological evidence and mineral and whole-rock...deposits in northern Xinjiang The northern Xinjiang region, located at the junction between the Siberia, Kazakhstan |  | | Journal (issue) | | Editor is glad to consider original articles shedding new light on subjects of gemmological interest for publication...studies of nephrites within several âfieldsâ in New Zealand, which fall within distinct geological terranes...nephrite in other localities around the Pacific Rim, in New Caledonia, Australia, Taiwan, Russia and Canada....especially in countries of the Pacific Rim (New Zealand, Australia, New Caledonia, China, Korea, Japan, Russia...OCEAN INDONESIA PNG NEW CALEDONIA AUSTRALIA Cowell Tiwaka River Tamworth Nelson North Westland South |  | Carlsen, Kenneth S., Gale, Marjorie H., Thompson, Woodrow B., Kierstead, Matthew (2015) Belvidere Mountain Asbestos Quarries, Lowell/Eden, Vermont. Rocks & Minerals, 90 (6) 510-551 doi:10.1080/00357529.2015.1080535 | Journal (article/letter/editorial) | | ca. 1960. Frank L. Forward photo. A Belvidere Mountain Figure 2. In 1920 this traction engine and ore...Heritage Consulting 156 Western Avenue Marlboro, New York 12542 matt@milestoneheritage.com sbestos Figure...Location map, prepared by William Besse. B elvidere Mountain, Quarries Lowell/Eden, Vermont in northern Vermont...yielded some of the most spectacular crystals of grossular, vesuvianite, and epidote ever found in the United...the mountain between 1899 and 1993. Unfortunately, the entire mining area on Belvidere Mountain is now |
|
