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New Almaden area

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Series: Geological Society, London, Geology of Series
Published: 01 January 2002
DOI: 10.1144/GOSPP.19
EISBN: 9781862393912
... of new deposits, both in already active mining districts (e.g. Migollas, Aguas Teñidas, Las Cruces and Los Frailes in the Pyritic Belt, and new mercury reserves in Almadén) and in new areas (e.g. El Valle-Carl és for gold, Aguablanca for nickel). However, despite the large reserves of metallic minerals...
Journal Article
Published: 01 December 2011
European Journal of Mineralogy (2011) 23 (6): 857-869.
... the Betic chain (Alhaurin de la Torre, Mijas, Macael), Ossa Morena (Alconera, Almadén de la Plata and Viana do Alentejo), and the Estremoz Anticline (Bencatel, Borba and Estremoz) areas. X-ray diffractometry and carbon and oxygen stable isotope analysis were carried out on these samples; 38 samples were...
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Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1993
DOI: 10.5382/GB.16
EISBN: 9781934969694
... of the mines, the New Almaden mine in Santa Clara County and the New Idria mine in San Benito County, rank as the fifth and sixth largest producing deposits in the world respectively (Bailey and others 1973). Prior to the discovery of the McLaughlin gold deposit in 1978, lode gold production from the Coast...
Series: Geological Society, London, Geology of Series
Published: 01 January 2002
DOI: 10.1144/GOSPP.4
EISBN: 9781862393912
..., Alcañices synclinorium; 15, Guadarrama area (eastern ‘Central System’); 16, Verín-Bragança region; 17, Tamames syncline; 18, Sierra de San Pedro and Cáceres syncline; 19, Cañaveral-Monfragüe syncline; 20, Guadarranque syncline; 21, Herrera del Duque syncline; 22, Corral de Calatrava syncline; 23, Almadén...
Journal Article
Published: 01 August 2002
Geochemistry: Exploration, Environment, Analysis (2002) 2 (3): 211-217.
... collected from the Guadalupe River and San Francisco Bay during July 1999; additional Guadalupe River locations (sites T, U and V) were sampled during April 2000. Samples taken immediately downstream of the New Almaden mining area include a suite of sites immediately upstream and downstream of physical...
FIGURES
Journal Article
Published: 01 January 2007
European Journal of Mineralogy (2007) 19 (1): 125-135.
... marble locality of Macael and at “Los Covachos”, in a small mountainous area, Galaperosa, in the Illamados mountains near Almaden de La Plata, a small town 55 km from Seville, along the ancient Italica-Merida Roman road. These types of marble are known in Spain by the local term “ anasol...
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Series: Geological Society, London, Geology of Series
Published: 01 January 2002
DOI: 10.1144/GOSPP.8
EISBN: 9781862393912
..., but the volcanic rocks have been described as bimodal (rhyolitic with minor basalts) and may therefore be related to (proto)-rift stages preceding Silurian extension. These rocks can be correlated with others described in Portugal (Porto de Santa Ana and Vimioso formations). Apart from the Almadén area...
Journal Article
Published: 01 June 2015
Italian Journal of Geosciences (2015) 134 (2): 304-322.
... of the surface waters, thus limiting the interactions with the contaminated terrains of the mining area. Finally, in July 2014 a new flight was operated to highlight the artificial channel ( fig. 1E ) after its completion (December 2013). The numbers in fig. 1E indicate the main mining structures: 1) dryers; 2...
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Series: Geological Society, London, Special Publications
Published: 01 January 2007
DOI: 10.1144/SP287.10
EISBN: 9781862395350
... features of geology are all the more interesting as they coexisted with the rise of nationalism in Europe, often associated with the emergence of new nations through the territorial unification of countries like Italy and Germany, or the effective occupation of overseas possessions. As Oldroyd (1996...
FIGURES
Series: Reviews in Economic Geology
Published: 01 January 2016
DOI: 10.5382/Rev.18.10
EISBN: 9781629490922
... to be the subject of debate. Recent models for Nevada Carlin-type deposits call upon magmatic ( Muntean et al., 2011 ) or sedimentary ( Large et al., 2011a , b) sources for gold and transport to the site of ore deposition by H 2 S-rich fluids of magmatic or metamorphic/meteoric derivation, respectively. Two areas...
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Journal Article
Published: 01 July 2012
American Mineralogist (2012) 97 (7): 1013-1042.
... continuously at or near Earth’s surface. Mercury mineral evolution is characterized by episodic deposition and diversification, perhaps associated with the supercontinent cycle. We observe statistically significant increases in the number of reported Hg mineral localities and new Hg species at ~2.8–2.6, ~1.9...
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Journal Article
Published: 05 March 2019
Bulletin de la Société Géologique de France (2019) 190 (1): 4.
...). The results show that the Sb ± Au deposition occurred at ca. 360 Ma. Coupled with recent results obtained in neighboring areas, this occurrence seems to belong to a large-scale Early Carboniferous economic Sb ± Au mineralizing peak in the southeastern part of the Central Armorican Domain. The emplacement...
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Journal Article
Published: 01 March 2017
European Journal of Mineralogy (2017) 29 (1): 17-34.
... material favouring the crystallization of new authigenic clay minerals. The main distinct feature of the gouge zones in the studied area is the presence of wide areas, with multiple bands up to 50 m thick ( Faulkner et al. , 2003 ), which is very different from other faults with gouge zones...
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Journal Article
Published: 01 November 2002
Journal of Paleontology (2002) 76 (6): 975-992.
..., and Silván, 1996 ; Coralcrinus sarachagorum Gil Cid, Domínguez, and Silván, 1998 ; and Ortsaecrinus cocae Gil Cid, Domínguez, Torres, and Jiménez, 1999 , are considered, and four new species assigned to three new genera are described herein, including Visocrinus castelli , Fresnedacrinus ibericus...
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Journal Article
Journal: Geosphere
Published: 01 February 2015
Geosphere (2015) 11 (1): 50-62.
... plate boundary and its effect on basin and landscape development. Prior to early Miocene time, the area that became Santa Clara Valley consisted of eroding Franciscan complex basement structurally interleaved in places with Coast Range ophiolite and Mesozoic Great Valley sequence, and locally overlapped...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2013
GSA Bulletin (2013) 125 (1-2): 89-108.
... with the adjacent Central European basement areas since the Neoproterozoic. The main steps of this evolution are interpreted in the light of new plate-tectonic reconstructions from the Cambrian onward ( Stampfli et al., 2011 ; Stampfli, 2012 ). They are controlled by the initial locations of the domains along...
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Journal Article
Published: 01 April 2006
Journal of Foraminiferal Research (2006) 36 (2): 166-190.
... (Italy) : Federazione Italiana di Scienze della Terra, Geoitalia 2001, Chieti , p. 192 – 193 . Cushman , J. A. , and Todd , R. , 1948 , A foraminiferal fauna from the New Almaden District California : Contributions from the Cushman Laboratory for Foraminiferal Research , no. 24 , p...
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Series: Economic Geology
Published: 01 January 2005
DOI: 10.5382/AV100.33
EISBN: 9781934969519
... at Norilsk, Russia. Paleoproterozoic orogenic belts, for example, the Trans-Hudson orogen in North America and the Barramundi orogen in Australia, welded together the new continent of Columbia. Foreland basins associated with these orogens, containing reductants (graphitic schists) in the basement, led...
Journal Article
Journal: Geology
Published: 01 June 2015
Geology (2015) 43 (6): 527-530.
... propose a new mechanism of Pangea formation, compatible with the geology, geochronology, and paleomagnetism, in which a clockwise rotation of Gondwana produces the necessary change in the stress field to form the late Variscan Cantabrian orocline. The supercontinent Pangea is one of the cornerstones...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP423.11
EISBN: 9781862399556
... and from localities in the Middle Rhine, Eifel, Hunsrück, Taunus and Dill areas (inventory numbers: SMF 65322, 65324, 65335, 65566, 65821, 66041, 66176-66180, 66294, 66372, 66379-66381, 66515, 66516, 66563, 66821-66844, 66846, 66849, 66853, 66854, 66856-66859, 93811-93822). Comparison. The new species...
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