... MP ALIAGA-CAMPUZANO*, JP BERNAL AND E. LOUNEJEVA-BATURINA Instituto de Geología, Universidad ... more ... MP ALIAGA-CAMPUZANO*, JP BERNAL AND E. LOUNEJEVA-BATURINA Instituto de Geología, Universidad Autónoma de México, México DF ... Road, Manchester, M13 9PL, UK (*correspondence: hugh.coe@manchester.ac.uk) (james.allan@manchester.ac.uk, nicholas.a.good ...
La interaccion entre los elementos traza y la biota marina es un importante proceso para los cicl... more La interaccion entre los elementos traza y la biota marina es un importante proceso para los ciclos biogeoquimicos de elementos en el ambiente marino. Una zona pristina ideal para estudiar tales efectos es la Bahia Concepcion en la Peninsula de Baja California. Esta bahia tiene un escaso impacto antropogenico, pero recibe descargas geotermales, hidrotermales y de aguas subterraneas, las cuales probablemente son importantes fuentes de elementos disueltos. Las macroalgas son reconocidas como eficientes biomonitores de elementos traza en la zona costera ya que acumulan selectivamente solo elementos disueltos y no elementos particulados directamente desde el agua. El objetivo de nuestro trabajo fue la evaluacion del posible impacto de los tres tipos de descargas indicadas, en la composicion elemental del agua de mar (en su fase disuelta y particulada), las macroalgas cafe Sargassum sinicola y zooplancton colectadas a lo largo de la costa oeste de Bahia Concepcion en tres areas caracteri...
Major trace element analyses, including pyrite chemistry of pyritic mudstones of shallow-marine S... more Major trace element analyses, including pyrite chemistry of pyritic mudstones of shallow-marine Singa Formation of Pennsylvanian–Early Permian age have been carried out to assess gold potential, the source of sulfur and organic matter. Regionally, Singa Formation spatially correlates with the Bohorok Formation (Sumatra, Indonesia), the Kaeng Krachang group (Thailand), and the Lebyin group (Burma or Myanmar). In Southeast Asia, this formation is important because it has a record of glacial processes that occurred along the northern margin of Gondwana in the Late Paleozoic age. This study has revealed that mudstones of the Singa Formation, which contain lonestones of glacial origin, deposited under suboxic–oxic conditions in shallow marine environment during Pennsylvanian–Early Permian time. The black mudstones contain total organic carbon which ranges from 0.1 to 0.7 wt.%, and gold content varying from 40 to 62 ppb, making them gold source rocks. This study has revealed diagenetic go...
The overarching aims of this study are: Determination of gold-containing mineral phases, as well ... more The overarching aims of this study are: Determination of gold-containing mineral phases, as well as gold and other trace element contents, in pyrite and arsenopyrite by combining results from Mineral Liberation Analysis (MLA) and laser ablation mass spectrometry (LA-ICPMS) on 10 rock core samples.
... MP ALIAGA-CAMPUZANO*, JP BERNAL AND E. LOUNEJEVA-BATURINA Instituto de Geología, Universidad ... more ... MP ALIAGA-CAMPUZANO*, JP BERNAL AND E. LOUNEJEVA-BATURINA Instituto de Geología, Universidad Autónoma de México, México DF ... Road, Manchester, M13 9PL, UK (*correspondence: hugh.coe@manchester.ac.uk) (james.allan@manchester.ac.uk, nicholas.a.good ...
La interaccion entre los elementos traza y la biota marina es un importante proceso para los cicl... more La interaccion entre los elementos traza y la biota marina es un importante proceso para los ciclos biogeoquimicos de elementos en el ambiente marino. Una zona pristina ideal para estudiar tales efectos es la Bahia Concepcion en la Peninsula de Baja California. Esta bahia tiene un escaso impacto antropogenico, pero recibe descargas geotermales, hidrotermales y de aguas subterraneas, las cuales probablemente son importantes fuentes de elementos disueltos. Las macroalgas son reconocidas como eficientes biomonitores de elementos traza en la zona costera ya que acumulan selectivamente solo elementos disueltos y no elementos particulados directamente desde el agua. El objetivo de nuestro trabajo fue la evaluacion del posible impacto de los tres tipos de descargas indicadas, en la composicion elemental del agua de mar (en su fase disuelta y particulada), las macroalgas cafe Sargassum sinicola y zooplancton colectadas a lo largo de la costa oeste de Bahia Concepcion en tres areas caracteri...
Major trace element analyses, including pyrite chemistry of pyritic mudstones of shallow-marine S... more Major trace element analyses, including pyrite chemistry of pyritic mudstones of shallow-marine Singa Formation of Pennsylvanian–Early Permian age have been carried out to assess gold potential, the source of sulfur and organic matter. Regionally, Singa Formation spatially correlates with the Bohorok Formation (Sumatra, Indonesia), the Kaeng Krachang group (Thailand), and the Lebyin group (Burma or Myanmar). In Southeast Asia, this formation is important because it has a record of glacial processes that occurred along the northern margin of Gondwana in the Late Paleozoic age. This study has revealed that mudstones of the Singa Formation, which contain lonestones of glacial origin, deposited under suboxic–oxic conditions in shallow marine environment during Pennsylvanian–Early Permian time. The black mudstones contain total organic carbon which ranges from 0.1 to 0.7 wt.%, and gold content varying from 40 to 62 ppb, making them gold source rocks. This study has revealed diagenetic go...
The overarching aims of this study are: Determination of gold-containing mineral phases, as well ... more The overarching aims of this study are: Determination of gold-containing mineral phases, as well as gold and other trace element contents, in pyrite and arsenopyrite by combining results from Mineral Liberation Analysis (MLA) and laser ablation mass spectrometry (LA-ICPMS) on 10 rock core samples.
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