FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3033837447> ?p ?o ?g. }

• W3033837447 endingPage "870" @default.
• W3033837447 startingPage "841" @default.
• W3033837447 abstract "Abstract The Highland Valley Copper porphyry Cu (±Mo) district is hosted in the Late Triassic Guichon Creek batholith in the Canadian Cordillera. Fracture-controlled sodic-calcic alteration is important because it forms a large footprint (34 km2) outside of the porphyry Cu centers. This alteration consists of epidote ± actinolite ± tourmaline veins with halos of K-feldspar–destructive albite (1–20 XAn) ± fine-grained white mica ± epidote. The distribution of sodic-calcic alteration is strongly influenced by near-orthogonal NE- and SE-trending fracture sets and by proximity to granodiorite stocks and porphyry dikes. Multiple stages of sodic-calcic alteration occurred in the district, which both pre- and postdate Cu mineralization at the porphyry centers. The mineral assemblages and chemical composition of alteration minerals suggest that the fluid that caused sodic-calcic alteration in the Guichon Creek batholith was Cl bearing, at near-neutral pH, and oxidized, and had high activities of Na, Ca, and Mg relative to propylitic and fresh-rock assemblages. The metasomatic exchange of K for Na, localized removal of Fe and Cu, and a paucity of secondary quartz suggest that the fluid was thermally prograding in response to magmatic heating. Calculated δ18Ofluid and δDfluid values of mineral pairs in isotopic equilibrium from the sodic-calcic veins and alteration range from 4 to 8‰ and −20 to −9‰, respectively, which contrasts with the whole-rock values for least altered magmatic host rocks (δ18O = 6.4–9.4‰ and δD = −99 to −75‰). The whole-rock values are suggested to reflect residual magma values after D loss by magma degassing, while the range of hydrothermal minerals requires a mixed-fluid origin with a contribution of magmatic water and an external water source. The O-H isotope results favor seawater as the source but could also reflect the ingress of Late Triassic meteoric water. The 87Sr/86Srinital values of strongly Na-Ca–altered rocks range from 0.703416 to 0.703508, which is only slightly higher than the values of fresh and potassic-altered rocks. Modeling of those data suggests the Sr is derived predominantly from a magmatic source, but the system may contain up to 3% seawater Sr. Supporting evidence for a seawater-derived fluid entrained in the porphyry Cu systems comes from boron isotope data. The calculated tourmaline δ11Bfluid values from the sodic-calcic domains reach 18.3‰, which is consistent with a seawater-derived fluid source. Lower tourmaline δ11Bfluid values from the other alteration facies (4–10‰) suggest mixing between magmatic and seawater-derived fluids in and around the porphyry centers. These results imply that seawater-derived fluids can infiltrate batholiths and porphyry systems at deep levels (4–5 km) in the crust. Sodic ± calcic alteration may be more common in rocks peripheral to porphyry Cu systems hosted in island-arc terranes and submarine rocks than currently recognized." @default.
• W3033837447 created "2020-06-12" @default.
• W3033837447 creator A5004221721 @default.
• W3033837447 creator A5006931947 @default.
• W3033837447 creator A5021329352 @default.
• W3033837447 creator A5044570602 @default.
• W3033837447 creator A5053535185 @default.
• W3033837447 creator A5054848829 @default.
• W3033837447 creator A5088233618 @default.
• W3033837447 date "2020-06-01" @default.
• W3033837447 modified "2023-09-27" @default.
• W3033837447 title "Mineralogical and Isotopic Characteristics of Sodic-Calcic Alteration in the Highland Valley Copper District, British Columbia, Canada: Implications for Fluid Sources in Porphyry Cu Systems" @default.
• W3033837447 cites W1862386107 @default.
• W3033837447 cites W1965852411 @default.
• W3033837447 cites W1966618174 @default.
• W3033837447 cites W1971244554 @default.
• W3033837447 cites W1973573652 @default.
• W3033837447 cites W1984225359 @default.
• W3033837447 cites W1985515464 @default.
• W3033837447 cites W1987135569 @default.
• W3033837447 cites W1991337992 @default.
• W3033837447 cites W1996236623 @default.
• W3033837447 cites W1996385203 @default.
• W3033837447 cites W1997880830 @default.
• W3033837447 cites W1999241836 @default.
• W3033837447 cites W2001555409 @default.
• W3033837447 cites W2005249241 @default.
• W3033837447 cites W2016175712 @default.
• W3033837447 cites W2016927138 @default.
• W3033837447 cites W2033490317 @default.
• W3033837447 cites W2034003688 @default.
• W3033837447 cites W2037165116 @default.
• W3033837447 cites W2041226839 @default.
• W3033837447 cites W2053364953 @default.
• W3033837447 cites W2056537930 @default.
• W3033837447 cites W2063547595 @default.
• W3033837447 cites W2064429520 @default.
• W3033837447 cites W2074041658 @default.
• W3033837447 cites W2076428559 @default.
• W3033837447 cites W2081408641 @default.
• W3033837447 cites W2088172667 @default.
• W3033837447 cites W2094397084 @default.
• W3033837447 cites W2096055175 @default.
• W3033837447 cites W2104692056 @default.
• W3033837447 cites W2108353466 @default.
• W3033837447 cites W2110077844 @default.
• W3033837447 cites W2127236625 @default.
• W3033837447 cites W2130304433 @default.
• W3033837447 cites W2133038839 @default.
• W3033837447 cites W2136887969 @default.
• W3033837447 cites W2139131101 @default.
• W3033837447 cites W2152675527 @default.
• W3033837447 cites W2155137417 @default.
• W3033837447 cites W2165394332 @default.
• W3033837447 cites W2166944457 @default.
• W3033837447 cites W2169942443 @default.
• W3033837447 cites W2169963845 @default.
• W3033837447 cites W2194383469 @default.
• W3033837447 cites W2319146553 @default.
• W3033837447 cites W2322075083 @default.
• W3033837447 cites W2326411402 @default.
• W3033837447 cites W2329554017 @default.
• W3033837447 cites W2329691596 @default.
• W3033837447 cites W2510724850 @default.
• W3033837447 cites W2600573858 @default.
• W3033837447 cites W2768910338 @default.
• W3033837447 cites W2769945035 @default.
• W3033837447 cites W2788261897 @default.
• W3033837447 cites W2887700683 @default.
• W3033837447 cites W2906170149 @default.
• W3033837447 cites W2928819767 @default.
• W3033837447 cites W2950441018 @default.
• W3033837447 cites W3003557051 @default.
• W3033837447 cites W3004204397 @default.
• W3033837447 cites W3006895279 @default.
• W3033837447 cites W3016194256 @default.
• W3033837447 cites W3021769060 @default.
• W3033837447 cites W3032933366 @default.
• W3033837447 cites W4244317044 @default.
• W3033837447 doi "https://doi.org/10.5382/econgeo.4740" @default.
• W3033837447 hasPublicationYear "2020" @default.
• W3033837447 type Work @default.
• W3033837447 sameAs 3033837447 @default.
• W3033837447 citedByCount "8" @default.
• W3033837447 countsByYear W30338374472020 @default.
• W3033837447 countsByYear W30338374472021 @default.
• W3033837447 crossrefType "journal-article" @default.
• W3033837447 hasAuthorship W3033837447A5004221721 @default.
• W3033837447 hasAuthorship W3033837447A5006931947 @default.
• W3033837447 hasAuthorship W3033837447A5021329352 @default.
• W3033837447 hasAuthorship W3033837447A5044570602 @default.
• W3033837447 hasAuthorship W3033837447A5053535185 @default.
• W3033837447 hasAuthorship W3033837447A5054848829 @default.
• W3033837447 hasAuthorship W3033837447A5088233618 @default.
• W3033837447 hasConcept C111696902 @default.
• W3033837447 hasConcept C127313418 @default.
• W3033837447 hasConcept C151730666 @default.
• W3033837447 hasConcept C15785431 @default.

• next