The Anarraaq Zn-Pb-Ag and Barite Deposit, Northern Alaska: Evidence for Replacement of Carbonate by Barite and Sulfides

Kelley, Karen D.; Dumoulin, Julie A.; Jennings, Scott

doi:10.2113/gsecongeo.99.7.1577

Cited by 64 publications

(44 citation statements)

References 27 publications

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“…Primary textural features assumed to represent synsedimentary exhalative (SEDEX) co-precipitation of sulphide minerals may also result from the subseafloor replacement by sulphide of carbonate layers within mudstone during sedimentation and early diagenesis (e.g. Anarraaq deposit, northern Alaska; Kelley et al 2004a) or by replacement many millions of years after sedimentation (Leach et al 2005). Therefore, carbonate cement in the Howards Pass mudstones, preserved long after pyrite formation, could have been later replaced by sphalerite.…”

Section: Discussion Temporal Relationships Between Pyrite and Sphaleritementioning

confidence: 99%

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Re-Os systematics and age of pyrite associated with stratiform Zn-Pb mineralization in the Howards Pass district, Yukon and Northwest Territories, Canada

Kelley

Selby

Falck³

et al. 2016

Miner Deposita

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Section: Discussion Temporal Relationships Between Pyrite and Sphaleritementioning

confidence: 99%

“…However, intricately interlayered sulphides can also be produced by replacement that mimics primary sedimentary features (e.g. Kelley et al 2004a;Leach et al 2005). In addition, original textures can be modified by post-mineralization deformation and recrystallization.…”

Section: Introductionmentioning

confidence: 99%

Re-Os systematics and age of pyrite associated with stratiform Zn-Pb mineralization in the Howards Pass district, Yukon and Northwest Territories, Canada

Kelley

Selby

Falck³

et al. 2016

Miner Deposita

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“…These include (1) the existence of fossil vent fauna (Dubé, 1988;Poole, 1988;Poole et al, 1991;Kelley et al, 2004), which suggest a flux of reduced chemical species to an oxygenated water column, (2) seawater-like to highly radiogenic strontium within the barite, which suggests solute acquisition from detrital sediments as well as from the basin waters themselves (Maynard et al, 1995;Emsbo and Johnson, 2004), (3) barite textures indicative of both diagenetic and seafloor growth (Poole, 1988;Zimmerman and Amstutz, 1989;Poole et al, 1991;Wang and Li, 1991;Kelley et al, 2004) as if fluids mixed along fronts that rose and fell with the waxing and waning of upward flow, and (4) the alignment of deposits along faults as if the barite was localized by conduits for upward flow (Poole, 1988).…”

Section: Isotopic Comparison To Barite Precipitates At Fluid Seeps Onmentioning

confidence: 99%

“…In fact, in some ancient deposits preexisting calcite was dissolved and replaced by barite (Vinogradov et al, 1978;Papke, 1984;Fuchs, 1989;Kelley et al, 2004).…”

Section: Isotopic Comparison To Barite Precipitates At Fluid Seeps Onmentioning

confidence: 99%

Sulfur- and oxygen-isotopes in sediment-hosted stratiform barite deposits

Emsbo

Poole

Rye

2009

Geochimica et Cosmochimica Acta

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“…6.0 kg of rock was processed. Sample from chert and calcareous radiolarite zone of middle interval of Ikalukrok unit of Kelley, Dumoulin, and Jennings (2004). Mississippian (on the basis of local stratigraphy).…”

Section: A L L O C H T H O N E N D I C O T T M O U N T a I N Smentioning

confidence: 99%

Conodont and Radiolarian Data from the De Long Mountains Quadrangle and Adjacent Areas, Northern Alaska

Dumoulin¹,

Harris²,

Blome³

et al. 2006

Open-File Report

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adjacent to strata of the KRA, but occur close to a major fault zone (Curtis and others, 1990). The CAI of this assemblage (3.5-4) is considerably higher than that from collections on trend to the southwest and northeast (e.g. CAI=2-2.5 and ≤2.5 at locs. 94 and 116). Whatever the structural level of these late Chesterian strata, they indicate that shallow-water platform carbonate deposition recurred in, or perhaps persisted into, latest Mississippian time in at least some parts of the De Long Mountains area. UTUKOK FORMATION AND RELATED ROCKS (TABLES 7, 8, 13; PLATES 2, 3) Lithofacies Wolverine Creek plate, EMA: In the Rok window, the Utukok Formation consists of ~120 m of limestone, locally argillaceous and (or) sandy, interbedded with shale, calcareous shale, and siltstone (map 1, locs. 63, 64, 73, 74, 83). Limestone, in wavy to nodular partly bioturbated beds 5 to 20 cm thick, includes skeletal wackestone, packstone, and grainstone. Some samples contain >10-15 percent non-calcareous mud, silt, and sand; coarser detritus is mainly quartz and lesser white mica. Throughout the Utukok in this plate, zones rich in lime mud are partly altered to chert and (or) dolomite, and the uppermost beds of the formation are often pervasively dolomitized and (or) silicified. Key Creek plate, EMA: In the Port Road succession, the Utukok Formation is about 150 m thick and conformably overlies the Kayak Shale (DDH 1103, map 4, loc. 159). It comprises light-to medium-gray limestone that is locally partly silicified and (or) partly dolomitized and has 5-15 percent gray to black shale interbeds that are 2 mm-Red Dog Fossils OF 2/24/06 4:55 PM p. 28 2.5 m thick. Skeletal packstone and grainstone makes up much of the unit, but sparsely bioclastic wackestone is common in shale-rich intervals. Shale layers contain trace amounts of quartz silt and sand. The Utukok Formation also occurs in the Key Creek plate west of the Red Dog Mine (map 1, loc. 31). Here, it consists of orange-weathering limestone with notable interbeds of shale and (or) sandstone and overlies the Kayak Shale. Similar rocks in the Key Creek plate south of the Red Dog Mine (map 5, loc. 172) were provisionally included in the Utukok by Dumoulin and others (2004). KRA: No strata equivalent to the Utukok Formation have been recognized in the Chimney plate. The lower part of the Lisburne Group in the Amphitheatre plate is a distinctive sequence of dark-gray, argillaceous limestone and carbonaceous shale (micritic limestone unit of Curtis et al., 1990). These rocks (map 1, locs. 95, 96, 98, and Po. mehli-Lower G. texanus Sc. anchoralis-D. latus G. typicus Upper Lower Si. isoticha-Upper Si. crenulata Lower S. crenulata Si. sandbergi Si. duplicata Si. sulcata A l l o c h t h o n E n d i c o t t M o u n t a i n s Wolv. LG (5) Kiv. (2) Red Dog Ik. (1, 14) Key Ck. Kuna (3, 14) Lisburne Group (4) Loc. 120

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The Anarraaq Zn-Pb-Ag and Barite Deposit, Northern Alaska: Evidence for Replacement of Carbonate by Barite and Sulfides

Cited by 64 publications

References 27 publications

Re-Os systematics and age of pyrite associated with stratiform Zn-Pb mineralization in the Howards Pass district, Yukon and Northwest Territories, Canada

Re-Os systematics and age of pyrite associated with stratiform Zn-Pb mineralization in the Howards Pass district, Yukon and Northwest Territories, Canada

Sulfur- and oxygen-isotopes in sediment-hosted stratiform barite deposits

Conodont and Radiolarian Data from the De Long Mountains Quadrangle and Adjacent Areas, Northern Alaska

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