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Te Arai River

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Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2006.2420(16)
.... Higher volcanic percentages in the Waimata and Te Arai Rivers suggest that the volcanic contribution in the Waipaoa River has likely been diluted by the great volume of sediment brought into the system from the large gullies in the catchment headwaters. Petrographic analysis of sand subfractions (very...
Journal Article
Published: 01 April 2002
The Canadian Mineralogist (2002) 40 (2): 637–650.
... values of all sulfide samples are comparable to the value for primitive mantle (6.3: McDonough & Sun 1995 ), but are distinctly lower than the values for MORB ( Hertogen et al. 1980 ) and for Hawaiian and Columbian River flood basalts (BHVO–1 and BCR–1; Govindaraju 1994 ). The lower Se/Te values...
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Journal Article
Published: 01 December 2005
Mineralogical Magazine (2005) 69 (6): 981–994.
... of empirical formulae of the keithconnite from the Darya river on the basis of four atoms gives the practically ideal relationship of Pd 3 (Te,Bi) (Table 1 , Nos 1, 2), which will be used hereafter. Another Pd-Te bearing phase (Table 1 , No. 3) has considerable Pt content and is best recalculated on the basis...
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Series: Geological Society, London, Special Publications
Published: 23 September 2020
DOI: 10.1144/SP497-2019-71
EISBN: 9781786205339
... Island); Dr Andrew Hoffman (Whitianga); Ngati Toa and Te Araroa Wellington Trust (Paekakariki); Deb Foster (Riverlands, Weld Pass, Clarence River); and Dr Gerard O'Regan (Opihi). We thank Dr Rod Wallace (Auckland University) for charcoal identification, Ted Linney (Victoria University) for laboratory...
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Journal Article
Published: 01 June 2003
The Canadian Mineralogist (2003) 41 (3): 597–616.
...Ahmed Hassan Ahmed; Shoji Arai Abstract Chromitite lenses rich in the platinum-group elements (PGE) have recently been discovered in the deeper part of the mantle section of the northern part of the Oman ophiolite. In terms of stratigraphic level, there are two types of chromitite: Moho transition...
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Series: Economic Geology, Economic Geology
Published: 01 January 2005
DOI: 10.5382/AV100.07
EISBN: 9781934969519
... and Sheahan, 1995 ). Only in 1870, after alluvial stones in gravels of the Orange and V aal river systems in South Africa led to the discovery of diamonds in so-called ‘dry diggings’ at Jagersfontein and Kimberley, was it realized that alluvial diamonds are secondary deposits derived from an ultramafic...
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Journal Article
Journal: Economic Geology
Published: 01 May 2017
Economic Geology (2017) 112 (3): 629–660.
... of trace elements in pyrite shows that there were two Au precipitation events, one coeval with Zn, In, Sn, Cd, Ag, and Te enrichment in the cores of pyrite and another fracture-controlled stage coeval with Ag, As, Se, Pb, Bi, Ni, and Co enrichment. Four distinct types of fluid inclusions are identified...
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Series: SEPM Special Publication, SEPM Special Publication
Published: 01 January 2011
DOI: 10.2110/sepmsp.100.281
EISBN: 9781565763098
.... This study, which focuses on the chemostratigraphy of this complex exposed in a ca. 60-cm-thick succession along the Brazos River, Falls County, Texas, U.S.A., aims to constrain the source of the material as well as the depositional conditions and postdepositional history of this highly controversial...
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Series: Geological Society, London, Special Publications
Published: 23 September 2020
DOI: 10.1144/SP497-2019-48
EISBN: 9781786205339
... in Bulgaria is subdivided into the following stages, which started at different times and had different duration in various parts of the region: The geographical locations of the presently studied Neolithic sites are given in Figure 1 . They are situated along the Struma River valley. The only exception...
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Journal Article
Published: 01 August 2016
American Mineralogist (2016) 101 (8): 1807–1819.
... et al. 2006 ; Ishimaru and Arai 2008 ). However, to date no single model readily explains all of the observed occurrences of high-Ni magmatic olivine. Given the compositional variability of the host lavas and the widespread and diverse localities at which anomalous olivine are observed it is perhaps...
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Journal Article
Published: 01 May 2018
Earthquake Spectra (2018) 34 (2): 639–672.
... , Arai and Tokimatsu 2005 , Parolai et al. 2005 , Piccozi et al. 2005 ). For example, HVSR data with strong peaks are often used to approximate the fundamental frequency of the shear wave transfer function, f 0_ TF ( Lermo and Chavez-Garcia 1993 , Lachet and Bard 1994 ) and/or the lowest frequency...
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Journal Article
Journal: Economic Geology
Published: 01 January 2011
Economic Geology (2011) 106 (1): 33–54.
... to ~10% CH 4 ± minor H 2 O, N 2 ) inclusions that contain ore metals (Ni, Cu, Pd, Bi, Te, Fe). Rare trails of late-stage, high-salinity, aqueous fluid inclusions are secondary in origin and, therefore, unrelated to the crystallization of the pegmatites. Assemblages of primary carbonic fluid inclusions...
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Journal Article
Published: 01 October 2016
Russ. Geol. Geophys. (2016) 57 (10): 1437–1464.
... all rivers in Kuznetsk Alatau that were mined for gold. New data obtained over the next 50 years are scarce. The PGE potential of this region was evaluated by Syrovatskii in 1990–1991 and the composition of alluvial PGM grains was systematically studied within the same period ( Krivenko et al., 1994...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2007
GSA Bulletin (2007) 119 (11-12): 1415–1432.
... occupied by the Taruheru River and drained into the northern sector of Poverty Bay (Figs. 1C and 1D) , but after the Taupo eruption, the Waipaoa captured the Te Arai River, and the Turanganui drainage was dissevered as the river mouth migrated southward to its present position ( Pullar and Penhale, 1970...
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Journal Article
Published: 01 January 2016
Reviews in Mineralogy and Geochemistry (2016) 81 (1): 489–578.
... (PtS) Cuprorhodsite (CuFe)Rh 2 S 4 Malanite [Cu(Pt,Ir,Co) 2 S 4 ] Te Moncheite [(Pt,Pd)(Te,Bi) 2 ] Maslovite (PtBiTe) As Sperrylite (PtAs 2 ) AsS Hollingworthite [(Rh,Pt,Pd)AsS] Platarsite [(Pt,Rh,Ru)AsS] Daomanite (CuPtAsS 2 ) Sb Genkinite [(Pt,Pd) 4 Sb 3...
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Journal Article
Journal: Economic Geology
Published: 01 August 2020
Economic Geology (2020) 115 (5): 1153–1156.
... River Zn-Pb deposit (Australia) using lead isotopes Joséphine Gigon, Etienne Deloule, Julien Mercadier, David L. Huston, Antonin Richard, Irvine R. Annesley, Andrew S. Wygralak, Roger G. Skirrow, Terrence P. Mernagh, Kristian Masterman 478 Early sulfide saturation is not detrimental to porphyry Cu-Au...
Journal Article
Journal: Economic Geology
Published: 01 March 2021
Economic Geology (2021) 116 (2): 527–532.
... Yangtze River metallogenic belt: The geochemical constrains Huasheng Qi, Sanming Lu, Xiaoyong Yang, Lili Zhao, and Jianshe Li article 103793 Geochemical evolution and timing of uranium mineralization in the Khetri copper belt, western India Abu Saeed Baidya and Dipak C. Pal article 103794 Geology...
Journal Article
Published: 01 January 2021
American Mineralogist (2021) 106 (1): 54–68.
... Diamonds have been mined for the past century from alluvial gravels along the rivers and creeks deep within Guyana's Amazon rainforest. The diamonds are found as placers in paleo-to-modern channels, terraces, and streambeds. Guyana's diamonds are found in headless placers, with the most productive gravels...
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Journal Article
Journal: Economic Geology
Published: 01 September 2020
Economic Geology (2020) 115 (6): 1267–1303.
... X XX Sperrylite PtAs 2 XXX XXX Vincentite (Pd,Pt) 3 (As,Sb,Te) XX X Hg-bearing vincentite (Pd,Pt,Hg) 3 (As,Sb,Te) X X Törnroosite Pd 11 As 2 Te 2 X X Paolovite Pd 2 Sn X   Naldrettite Pd 2 Sb X X Palladoarsenide Pd 2 As X X Majakite PdNiAs X X...
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Journal Article
Journal: Economic Geology
Published: 01 June 2003
Economic Geology (2003) 98 (4): 855–864.
..., Sevier orogenic belt, Utah— W.A. Yonkee, W.T. Parry, and R.L. Bruhn 1 Heavy metal partitioning in river sediments severely polluted by acid mine drainage in the Iberian pyrite belt —E. Galán, J.L. Gómez-Ariza, I. González, J.C. Fernández-Caliani, E. Morales, and I. Giráldez 409...