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Baguio Philippine Islands

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(A) The Philippines is composed of two terranes: the Palawan microcontinental block (PCB) and the Philippine mobile belt (PMB). The Philippine mobile belt is bound by oppositely dipping subduction zone systems and traversed by the Philippine fault (PF) (Tsutsumi and Perez, 2013). The Philippines hosts five major gold districts: 1 – Baguio-Mankayan, 2 – Paracale, 3 – Masbate, 4 – Zamboanga, and 5 – Eastern Mindanao (Yumul et al., 2003). (B) The Masara gold district (pink star) is located on Mindanao Island, southern Philippines, which hosts gold deposits of different types (yellow diamond). Major structures traversing the island include the Philippine fault and the Sindangan-Cotabato-Daguma (SCD) lineament. (C) Inset showing a closer look at the study area and surrounding known deposits (blue diamonds). Topography and bathymetry data are from Smith and Sandwell (1997), and traces of structures are from Pubellier et al. (1991) and Sajona et al. (1997).

(A) The Philippines is composed of two terranes: the Palawan microcontinent...

Published: 01 November 2017
). The Philippines hosts five major gold districts: 1 – Baguio-Mankayan, 2 – Paracale, 3 – Masbate, 4 – Zamboanga, and 5 – Eastern Mindanao ( Yumul et al., 2003 ). (B) The Masara gold district (pink star) is located on Mindanao Island, southern Philippines, which hosts gold deposits of different types (yellow
Journal Article

Seismological notes

Published: 01 January 1940
Bulletin of the Seismological Society of America (1940) 30 (1): 87–89.
DOI: https://doi.org/10.1785/BSSA0300010087
... SOCIETY OF ikMERIC& Baguio, Philippine Islands, October 30, 1939An earthquake strong enough to cause theater patrons to rush out into the streets shook Baguio on October 30. San Pedro, California, November 4, 1939At 1:45 P.M. an earthquake was felt in San Pedro, Wilmington, Los Angeles, and Long Beach...
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Igneous Geochemistry of Mineralized Rocks of the Baguio District, Philippines: Implications for Tectonic Evolution and the Genesis of Porphyry-Style Mineralization

Pete Hollings, David R. Cooke, Patrick J. Waters, Brian Cousens
Journal: Economic Geology
Published: 01 December 2011
Economic Geology (2011) 106 (8): 1317–1333.
DOI: https://doi.org/10.2113/econgeo.106.8.1317
.... Tamayo R.A. Jr. Yumul G.P. Jr. Bellon H. Cotten J. , 2007 , The oceanic substratum of northern Luzon: Evidence from xenoliths within Monglo adakite (the Philippines) : Island Arc , v. 16 , p. 276 – 290 . Pena R.E. , 1998 , Further notes on the stratigraphy of the Baguio...
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View PDF for article title, Igneous Geochemistry of Mineralized Rocks of the <span class="search-highlight">Baguio</span> District, <span class="search-highlight">Philippines</span>: Implications for Tectonic Evolution and the Genesis of Porphyry-Style Mineralization
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Journal Article

Geochemistry of Tertiary Igneous Rocks of Northern Luzon, Philippines: Evidence for a Back-Arc Setting for Alkalic Porphyry Copper-Gold Deposits and a Case for Slab Roll-Back?

Pete Hollings, Rohan Wolfe, David R. Cooke, Patrick J. Waters
Journal: Economic Geology
Published: 01 December 2011
Economic Geology (2011) 106 (8): 1257–1277.
DOI: https://doi.org/10.2113/econgeo.106.8.1257
...Pete Hollings; Rohan Wolfe; David R. Cooke; Patrick J. Waters Abstract Oligocene to early Miocene volcanic rocks are preserved in the Central Cordillera range and Cagayan Valley of northern Luzon, Philippines. Basaltic and andesitic rocks of the Pugo Formation in the Baguio district of the Central...
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View PDF for article title, Geochemistry of Tertiary Igneous Rocks of Northern Luzon, <span class="search-highlight">Philippines</span>: Evidence for a Back-Arc Setting for Alkalic Porphyry Copper-Gold Deposits and a Case for Slab Roll-Back?
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Journal Article

Philippine Porphyry and Epithermal Deposits: An Introduction

David R. Cooke, Pete Hollings, Zhaoshan Chang
Journal: Economic Geology
Published: 01 December 2011
Economic Geology (2011) 106 (8): 1253–1256.
DOI: https://doi.org/10.2113/econgeo.106.8.1253
..., 2011 ). The Baguio district was the most prolific gold-producing district in the Philippines during much of the 20 th century ( Bureau of Mines and Geosciences, 1986 ) and is located within a region of complex plate tectonic relationships, and consequently offers an opportunity to investigate...
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Journal Article

Index to volume 22

Published: 01 December 1932
Bulletin of the Seismological Society of America (1932) 22 (4): 299–305.
DOI: https://doi.org/10.1785/BSSA0220040299
..., Portugal 68 Aspley District, England 68 Atascadero, California 290 Atlantic Ocean, South 171 Auckland, New Zealand 171 Autlan, Jaliseo, Mexico 255 Azores Islands 255 Baguio, Philippine Islands 256 300 BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AiXIERICA Earthquakes, notes concerning Continl~ed ) P~ Bahama...
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Journal Article

Porphyry and Epithermal Deposits and 40 Ar/ 39 Ar Geochronology of the Baguio District, Philippines

Patrick J. Waters, David R. Cooke, Rene I. Gonzales, David Phillips
Journal: Economic Geology
Published: 01 December 2011
Economic Geology (2011) 106 (8): 1335–1363.
DOI: https://doi.org/10.2113/econgeo.106.8.1335
... to porphyry Cu-Au and epithermal Au-Ag mineralization. The Baguio district is located on the island of Luzon, at the southern end of the Luzon Central Cordillera. It is part of the magmatic arc associated with present-day eastward-directed subduction of the South China Sea plate beneath the Philippines...
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Journal Article

Evidence for Magmatic-Hydrothermal Fluids and Ore-Forming Processes in Epithermal and Porphyry Deposits of the Baguio District, Philippines

David R. Cooke, Cari L. Deyell, Patrick J. Waters, Rene I. Gonzales, Khin Zaw
Journal: Economic Geology
Published: 01 December 2011
Economic Geology (2011) 106 (8): 1399–1424.
DOI: https://doi.org/10.2113/econgeo.106.8.1399
... ; Cowal, Australia: Zukowski et al., submitted). The Baguio district, Philippines ( Fig. 1 ), contains two giant and numerous smaller intermediate sulfidation state epithermal vein systems. Mineralized veins at the giant Antamok and Acupan deposits extend from surface to depths of almost a kilometer...
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Journal Article

Engineering on the precipice: the performance of mountain road rehabilitation in the Central Cordillera of the Philippines

G. J. Hearn, J. R. Hart
Published: 06 February 2020
Quarterly Journal of Engineering Geology and Hydrogeology (2020) 53 (4): 542–568.
DOI: https://doi.org/10.1144/qjegh2019-152
... to honor’ This quotation from West (1918 , p. 2), Highway Engineer in the Bureau of Public Works (BPW), Government of the Philippine Islands, was a fitting reminder to his colleagues of the need to ensure thorough investigation and recording of ground conditions prior to embarking on construction...
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Journal Article

Settlements and slides: a large landslide case study from the Central Cordillera of the Philippines

Gareth James Hearn, Jonathan Roy Hart
Published: 25 June 2019
Quarterly Journal of Engineering Geology and Hydrogeology (2020) 53 (1): 62–73.
DOI: https://doi.org/10.1144/qjegh2019-050
... of the incising stream channel. Fig. 9. Fault gouge with sliding surfaces and slickensides exposed in stream bed. The island of Luzon is located within the Philippine Mobile Belt, a Paleogene volcanic arc located between the Philippine Sea plate to the east and the Eurasia plate to the west, both...
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Journal Article

Geological History and Petroleum Possibilities of the Philippines

Earl M. Irving
Journal: AAPG Bulletin
Published: 01 March 1952
AAPG Bulletin (1952) 36 (3): 437–476.
DOI: https://doi.org/10.1306/3D93440F-16B1-11D7-8645000102C1865D
.... 1940 , Wisser , Edward , “ ‘Vigo Group’ Intruded by Quartz Diorite at Baguio, Philippine Islands ,” Proc. Sixth Scientific Congress , Vol. 2 , pp. 651 – 57 . Univ. of California Press . 1944 , Beltz , E. W. , “ Principal Sedimentary Basins in the East Indies ,” Bull. Amer. Assoc...
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Journal Article

The Sorsogon earthquake: By Rev. Miguel Saderra Maso, S.J., Weather Bulletin , November, 1912

A. McAdie
Published: 01 September 1913
Bulletin of the Seismological Society of America (1913) 3 (3): 144–146.
DOI: https://doi.org/10.1785/BSSA0030030144
...A. McAdie References 1 The Mineral Resources of the Philippine Islands , 1909 . Copyright © 1913, by the Seismological Society of America 144 BULLETIN OF THE SEISMOLOGICAL SOCIETY This little manual can be heartily recommended to anyone wishing to obtain a clea...
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Journal Article

Engineering on the precipice: mountain road rehabilitation in the Philippines

J. Hart, G. Hearn, C. Chant
Published: 01 August 2002
Quarterly Journal of Engineering Geology and Hydrogeology (2002) 35 (3): 223–231.
DOI: https://doi.org/10.1144/1470-9236/2000-57
... are recorded each day ( NZNSEE Reconnaissance Team 1991 ). Regular and often very intense seismicity in the region is principally related to subduction-zone tectonic activity surrounding the Philippine Islands ( Fig. 3 ). Lying at the convergence of the Philippine Sea Plateto the east and the Eurasian Plate...
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Journal Article

Physicochemical Processes in the Magma Chamber under the Black Mountain Porphyry Cu-Au Deposit, Philippines: Insights from Mineral Chemistry and Implications for Mineralization

MingJian Cao, Pete Hollings, David R. Cooke, Noreen J. Evans, Brent I.A. McInnes, KeZhang Qin, GuangMing Li, Gabe Sweet, Mike Baker
Journal: Economic Geology
Published: 01 January 2018
Economic Geology (2018) 113 (1): 63–82.
DOI: https://doi.org/10.5382/econgeo.2018.4544
...MingJian Cao; Pete Hollings; David R. Cooke; Noreen J. Evans; Brent I.A. McInnes; KeZhang Qin; GuangMing Li; Gabe Sweet; Mike Baker Abstract The Black Mountain porphyry Cu-Au deposit in the Baguio district, Northern Luzon (Philippines) is associated with late Miocene to Pliocene intrusive rocks...
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Journal Article

Logistic Regression for Geologically Constrained Mapping of Gold Potential, Baguio District, Philippines

EMMANUEL JOHN M. CARRANZA, MARTIN HALE
Published: 01 July 2001
Exploration and Mining Geology (2001) 10 (3): 165–175.
DOI: https://doi.org/10.2113/0100165
...EMMANUEL JOHN M. CARRANZA; MARTIN HALE Abstract An application of logistic regression to mapping of gold potential in the Baguio district of the Philippines is described. Categorical map data such as lithologic units and proximity classes of curvi-linear features, based on spatial association...
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Journal Article

A Special Issue Devoted to Porphyry and Epithermal Deposits of the Southwest Pacific: An Introduction

Pete Hollings, Michael J. Baker, Evan Orovan, Marc Rinne
Journal: Economic Geology
Published: 01 January 2018
Economic Geology (2018) 113 (1): 1–6.
DOI: https://doi.org/10.5382/econgeo.2018.4541
... ). These arcs form a complex boundary between the Eurasian, Pacific, and Indian-Australian tectonic plates, stretching from Japan in the northeast and Myanmar in the northwest, through the Philippines, Indonesia, New Guinea, and the volcanic island chains of the Solomon Islands, New Hebrides (Vanuatu), and Fiji...
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Journal Article

Index to volume 30

Published: 01 October 1940
Bulletin of the Seismological Society of America (1940) 30 (4): 415–418.
DOI: https://doi.org/10.1785/BSSA0300040415
... Caribbean Sea 409 303 (2), 304 (2), 409, 410 (2) Celaya, Mexico 307 Amasia, Turkey 180 (2) Celebes Island 89, 179 Anatolia, Turkey 303 Chico, California ]82 Ankara, Turkey 304 Co]omoncagua, Honduras 180 Argentina 411 Colt(m, California 307 Baguio, Philippine Islands 88 Compton, California 181 Baltimore...
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Journal Article

Geology of Northern Luzon, Philippines

Edward F. Durkee, Selmer L. Pederson
Journal: AAPG Bulletin
Published: 01 February 1961
AAPG Bulletin (1961) 45 (2): 137–168.
DOI: https://doi.org/10.1306/0BDA632F-16BD-11D7-8645000102C1865D
...Edward F. Durkee; Selmer L. Pederson ABSTRACT North of Lat. 16° N. the island of Luzon, Philippines, consists morphologically, from east to west, of: (1) the Sierra Madre, (2) an intermontane structural basin, the Cagayan Valley, (3) the Cordillera Central, and (4) a fragmentary exposure...
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Journal Article

Detrital zircon record from major rivers of Luzon Island: implications for Cenozoic continental growth in SE Asia

Chia-Hsin Tsai, J. Bruce H. Shyu, Sun-Lin Chung, Noelynna T. Ramos, Hao-Yang Lee
Published: 17 May 2019
Journal of the Geological Society (2019) 176 (4): 727–735.
DOI: https://doi.org/10.1144/jgs2019-003
... continental growth in the Cenozoic, despite the limited availability of data. Therefore, we conducted for the first time a comprehensive U–Pb and Hf isotopic analysis of detrital zircons separated from major rivers of Luzon Island, the largest landmass of the Philippine Archipelago. U–Pb ages of these zircons...
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Journal Article

Index to Volume 40

Published: 01 October 1950
Bulletin of the Seismological Society of America (1950) 40 (4): 323–331.
DOI: https://doi.org/10.1785/BSSA0400040323
..., 150, 153, 159, 163, 245, 313 Aleutian Islands Babuyan Channel 61 66 (2), 71, 158, 159, 162, 244, 245, 247 Baguio, Philippine Islands 157 (2), 312, 316, 319 Baja California . . . . . . . . . . . . . . . . . . 68, 313 Algeria 246 Bakersfield, California 246 Altai Mountains, Outer Mongolia 160 Banda Sea...
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