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Halmahera Indonesia

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Journal Article
Journal: Economic Geology
Published: 01 August 2007
Economic Geology (2007) 102 (5): 893–922.
...J. Bruce Gemmell Abstract The Gosowong epithermal Au-Ag deposit, located on Halmahera Island, eastern Indonesia, has a resource of 0.99 million metric tons (Mt) at 27 g/t Au and 38 g/t Ag. Host rocks consist of Miocene shallow marine, intermediate-basic volcanic and volcaniclastic rocks...
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Journal Article
Journal: SEG Discovery
Published: 01 July 2015
SEG Discovery (2015) (102): 1–16.
... epithermal gold deposit, Halmahera, Indonesia : Journal of Geochemical Exploration , v. 60 , p. 207 – 227 . Creenaune , P. , Braund , K. , and McLeod , R. , 2003 , The Cracow gold project, Cracow, Queensland, a discovery case history: NewGenGold Conference, Perth, Western Australia...
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Journal Article
Journal: Economic Geology
Published: 01 January 2018
Economic Geology (2018) 113 (1): 209–236.
...Lindsey V. Clark; J. Bruce Gemmell Abstract The Kencana Au-Ag low-sulfidation epithermal deposit, situated in the Neogene magmatic arc of Halmahera, eastern Indonesia, has an estimated resource of 4.4 million tonnes (Mt) @ 27.9 g/t Au, containing 4 Moz Au. The deposit, which forms part...
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Journal Article
Published: 01 August 1988
Journal of the Geological Society (1988) 145 (4): 577–590.
... Hall R. Plate boundary evolution in the Halmahera region, eastern Indonesia Tectonophysics 1987 144 337 52 Hall R. Audley-Charles M. G. Banner F. T. Hidayat S. Tobing S. L. Basement rocks of the Halmahera region, eastern Indonesia: a Late Cretaceous–early Tertiary...
Journal Article
Published: 01 February 1988
Journal of the Geological Society (1988) 145 (1): 65–84.
...R. HALL; M. G. AUDLEY-CHARLES; F. T. BANNER; S. HIDAYAT; S. L. TOBING Abstract Halmahera is a K-shaped island located at the junction of several major arc-trench systems of the western Pacific–eastern Indonesia region. Western Halmahera is an active volcanic arc above a zone of intense seismicity...
Series: Geological Society, London, Special Publications
Published: 01 January 2003
DOI: 10.1144/GSL.SP.2003.219.01.10
EISBN: 9781862394674
...Abstract Abstract The Molucca Sea Collision Zone in eastern Indonesia is the site of an orthogonal collision between two active subduction systems. Both the Halmahera subduction zone, to the east, and the Sangihe subduction zone, to the west, have subducted oceanic lithosphere of the Molucca...
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Journal Article
Journal: Geology
Published: 01 March 1991
Geology (1991) 19 (3): 215–217.
... the originally subducted material. Sediments and altered oceanic crust are enriched in boron and cesium relative to uncontaminated mantle products, and these elements are highly mobile during fluid-rock interaction. The combination of B-isotope systematics and Cs concentrations in lavas from the Halmahera arc...
Journal Article
Journal: Geology
Published: 01 October 2008
Geology (2008) 36 (10): 795–798.
...S.J. Langton; B.K. Linsley; R.S. Robinson; Y. Rosenthal; D.W. Oppo; T.I. Eglinton; S.S. Howe; Y.S. Djajadihardja; F. Syamsudin Abstract We use geochemical data from a sediment core in the shallow-silled and intermittently dysoxic Kau Bay in Halmahera (Indonesia, lat 1°N, long 127.5°E...
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Image
A. Location of <span class="search-highlight">Halmahera</span> Island, <span class="search-highlight">Indonesia</span>. B. Simplified geologic map of H...
Published: 01 August 2007
F ig . 1. A. Location of Halmahera Island, Indonesia. B. Simplified geologic map of Halmahera Island. Modified from Olberg (2001) .
Image
▴ Four examples of representative events processed with ARPAC: 1) Eastern A...
Published: 01 July 2009
Figure 7. ▴ Four examples of representative events processed with ARPAC: 1) Eastern Arabian Peninsula event (2002/03/11 20:06); 2) Hokkaido, Japan, region event (1997/11/15 07:05); 3) Halmahera, Indonesia event (1995/10/04 01:33); and 4) Andaman Islands, near India, event (2006/10/30 17:17
Series: GSA Special Papers
Published: 01 January 2008
DOI: 10.1130/2008.2436(02)
... to the Halmahera Arc in Indonesia shows an excellent fit to observations if a broken-plate model of flexure is assumed. The model also gives an excellent fit to data from East Java, also in Indonesia, where it is possible to forward model gravity anomalies. In particular, the depth, location, and width...
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Series: AAPG Memoir
Published: 01 January 1976
EISBN: 9781629812113
... the northern tip of Sumatra to the Banda Sea; (2) the Minahasa-Sangihe-Ragay zone, extending from the northern part of Sulawesi (Celebes) into the Philippines; and (3) the Halmahera-Ternate zone on the southwest border of the Pacific. Within these areas the temperature gradient (3°C/100 m) is above normal...
Image
Location and age of the major volcanic arcs in <span class="search-highlight">Indonesia</span>. Gosowong Goldfiel...
Published: 01 January 2018
Fig. 1. Location and age of the major volcanic arcs in Indonesia. Gosowong Goldfield is situated within the late Miocene-Pliocene Halmahera arc. Diagram modified from Van Leeuwen (1994) and Wurst (2004) .
Image
Intensity observations (colored circles) from the Gempa Nusantra database o...
Published: 04 November 2022
Figure 1. Intensity observations (colored circles) from the Gempa Nusantra database overlain on a simplified tectonic map of Indonesia. Dashed line is the outline of the Mesozoic core of the Sundaland block from Hall (2014) . Toothed lines show convergence between major tectonic plates
Journal Article
Published: 01 July 2009
Seismological Research Letters (2009) 80 (4): 579–590.
...Figure 7. ▴ Four examples of representative events processed with ARPAC: 1) Eastern Arabian Peninsula event (2002/03/11 20:06); 2) Hokkaido, Japan, region event (1997/11/15 07:05); 3) Halmahera, Indonesia event (1995/10/04 01:33); and 4) Andaman Islands, near India, event (2006/10/30 17:17...
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Journal Article
Journal: Economic Geology
Published: 01 January 2018
Economic Geology (2018) 113 (1): 1–6.
... ). A recent update to the Au resource estimate for the Kencana low-sulfidation epithermal deposit, part of the Gosowong Goldfield on Halmahera Island, Indonesia ( Clark and Gemmell, 2018 ) shows that it is among the richest magmatic-hydrothermal Au deposits in the southwest Pacific ( Fig. 3a ). Similarly...
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Journal Article
Published: 01 December 1992
Bulletin of the Seismological Society of America (1992) 82 (6): 2572–2574.
... 0 . 1 8 Nm). Best double couple: NPI: strike = 135°, dip = 88°, slip = 179°. NP2: strike = 225 °, dip = 89 °, slip = 2° ( M 0 = 1.7 * 10 ** 18 Nm). Magni- tude 5.7 (GS mb), 6.0 (GS Ms), M o = 2.0* 10.* 18 Nm (PPT). Halmahera, Indonesia. January 13, 1992 llh58m23.1s, 1.34°N, 127.37°E, focal depth 113...
Journal Article
Published: 14 April 2021
Seismological Research Letters (2021) 92 (5): 2915–2926.
.... Eastern Indonesia and, in particular, the Molucca Sea region are characterized by complicated tectonic settings in which a number of curved SZs and major faults intersect each other, namely, the north Sulawesi SZ, the two parallel SZs of Sangihe and Halmahera, and the Philippine SZ (Fig.  1 ; Hall, 2002...
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Journal Article
Published: 11 August 2021
Seismological Research Letters (2021) 92 (6): 3339–3348.
..., 2019 ) Unmapped(This study) 7 2019 M w  7.2 Halmahera 13( KOMPAS , 2019 ) Unmapped(Unstudied) BBC Indonesia and KOMPAS are national newspapers. AHA, ASEAN Humanitarian Assistance; BNPB, National Disaster Management Authority of Indonesia; CGI, The Consultative Group...
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Journal Article
Published: 01 October 2020
Earthquake Spectra (2020) 36 (1_suppl): 112–136.
...Masyhur Irsyam; Phil R Cummins; M Asrurifak; Lutfi Faizal; Danny Hilman Natawidjaja; Sri Widiyantoro; Irwan Meilano; Wahyu Triyoso; Ariska Rudiyanto; Sri Hidayati; M Ridwan; Nuraini Rahma Hanifa; Arifan Jaya Syahbana Indonesia is one of the most seismically active countries in the world, and its...
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