Data

Zircon, monazite and feldspar datasets from Indo- and Australo-Antarctica

Name: Zircon, monazite and feldspar datasets from Indo- and Australo-Antarctica
Published: 2019-07-04

Australian Antarctic Data Centre

HALPIN, JACQUELINE

Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]

ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/5d1d77ffcbfe3&rft.title=Zircon, monazite and feldspar datasets from Indo- and Australo-Antarctica&rft.identifier=10.26179/5d1d77ffcbfe3&rft.publisher=Australian Antarctic Data Centre&rft.description=These dataset files (2 appendices, 4 figures, 2 tables) are supplementary material to: Mulder, J.A., Halpin, J.A., Daczko, N.R., Orth, K., Meffre, S., Thompson, J.M., Morrissey, L.J., 2019. A Multiproxy provenance approach to uncovering the assembly of East Gondwana in Antarctica. Geology 47, 645-649. https://doi.org/10.1130/G45952.1 https://pubs.geoscienceworld.org/gsa/geology/article/47/7/645/570485/A-Multiproxy-provenance-approach-to-uncovering-the They include: Appendix DR1. Feldspar Pb-isotope method by laser ablation–quadrupole–inductively coupled plasma–mass spectrometry Appendix DR2. Detailed assessment of sediment provenance. Figure DR1. Simplified core logs. Figure DR2. Images of pebbles from NPB0101 Grab-19. Figure DR3. Provenance signals with depth in the sediment cores and feldspar type. Figure DR4. Glacial and oceanographic context for samples from the Mirny region, Davis Sea. Table DR1. Sample details. Table DR2. Feldspar Pb-isotope data. Table DR3. Zircon and monazite U-Pb data. Details of analytical methods from Mulder et al. (2019): SAMPLING AND METHODS The Pb-isotopic signature of feldspar reflects the petrogenesis of crystalline rocks and has been successfully used to map tectonothermal provinces, including in Antarctica (e.g., Flowerdew et al., 2013a). We characterized the feldspar Pb-isotopic composition of Indo-Antarctica and Australo-Antarctica using data from igneous and metamorphic rocks exposed between 50°E and 120°E (Fig. 1B; Tables DR1 and DR2 in the GSA Data Repository). Feldspar Pb-isotope data from Indo-Antarctica include the Archean–Cambrian basement rocks analyzed by Flowerdew et al. (2013a), complemented by new analyses from five Proterozoic charnockites in the Rayner Complex (Fig. 1B; Table DR1; for sample descriptions, see Halpin et al. [2012]). New data from Australo-Antarctica include 31 Archean–Cambrian samples from the Wilkes, Bunger, and Charcot Provinces (Fig. 1B; Table DR1; for sample descriptions, see Sheraton et al., 1992, 1995; Morrissey et al., 2017). To test if offshore detrital feldspar is a reliable proxy for onshore basement, we analyzed detrital feldspar grains from Pleistocene sediment in Ocean Drilling Program (ODP) core 188-1167A from Prydz Bay, Antarctica (Shipboard Scientific Party, 2001; Fig. 1B; Fig. DR1), which was sourced from basement terranes surrounding the Lambert Rift (Fig. 1B; Appendix DR2; O’Brien et al., 2007; Veevers et al., 2008). The subglacial geology surrounding the inferred paleo–plate boundary near Mirny Station was then investigated by analyzing detrital feldspar, monazite, and zircon grains from coarse (greater than 50 mm) Holocene sediments collected ~50–70 km offshore from Mirny Station during R/V Nathaniel B. Palmer cruise NB0101 (http://www.marine-geo.org/link/entry.php?id=NBP010; Fig. 1B, inset; Figs. DR1 and DR2). Ice-drainage models demonstrate that these sediments were sourced from small glaciers along the coastline near Mirny Station (Fig. 1B, inset; Appendix DR2; Figs. DR3 and DR 4; Rignot et al., 2011).&rft.creator=HALPIN, JACQUELINE &rft.date=2019&rft.coverage=northlimit=-63.78249; southlimit=-72.91964; westlimit=46.75781; eastLimit=116.54297; projection=WGS84&rft.coverage=northlimit=-63.78249; southlimit=-72.91964; westlimit=46.75781; eastLimit=116.54297; projection=WGS84&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4355_Mulder_etal_2019 when using these data.&rft_subject=geoscientificInformation&rft_subject=AGE DETERMINATIONS&rft_subject=EARTH SCIENCE&rft_subject=SOLID EARTH&rft_subject=ROCKS/MINERALS/CRYSTALS&rft_subject=ELEMENTS&rft_subject=ISOTOPES&rft_subject=GEOCHEMISTRY&rft_subject=GEOCHEMICAL PROPERTIES&rft_subject=U-PB DATING&rft_subject=PB-ISOTOPE&rft_subject=ZIRCON&rft_subject=MONAZITE&rft_subject=FELDSPAR&rft_subject=LA-ICP-MS > Laser Ablation Inductively Coupled Plasma Mass Spectrometer&rft_subject=LABORATORY&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=CONTINENT > ANTARCTICA > WINDMILL ISLANDS&rft_subject=CONTINENT > ANTARCTICA > BUNGER HILLS&rft_subject=CONTINENT > ANTARCTICA > MOUNT STRATHCONA&rft_subject=CONTINENT > ANTARCTICA > CAPE CHARCOT&rft_subject=CONTINENT > ANTARCTICA > CAPE KENNEDY WEST&rft_subject=CONTINENT > ANTARCTICA > POSSESSION ROCKS&rft_subject=CONTINENT > ANTARCTICA > WATSON BLUFF&rft_subject=CONTINENT > ANTARCTICA > CAPE HARRISON&rft_subject=CONTINENT > ANTARCTICA > CHUGUNOV ISLAND&rft_subject=CONTINENT > ANTARCTICA > OBRUCHEV HILLS&rft_subject=CONTINENT > ANTARCTICA > GRACE ROCKS&rft_subject=CONTINENT > ANTARCTICA > CHAPMAN RIDGE&rft_subject=CONTINENT > ANTARCTICA > MOUNT HORDEN&rft_subject=CONTINENT > ANTARCTICA > MAWSON STATION&rft_subject=CONTINENT > ANTARCTICA > MACEY ISLAND&rft_subject=CONTINENT > ANTARCTICA > AUSTSKJERA&rft_subject=CONTINENT > ANTARCTICA > IODP LEG 188 1167A&rft_subject=CONTINENT > ANTARCTICA > NBP01-01 KC-18&rft_subject=CONTINENT > ANTARCTICA > NBP01-01 KC-22&rft_subject=CONTINENT > ANTARCTICA > NBP01-01 GRAB-19&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data

Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

view details

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4355_Mulder_etal_2019 when using these data.

Access:

Open view details

These data are publicly available for download from the provided URL.

Brief description

These dataset files (2 appendices, 4 figures, 2 tables) are supplementary material to: Mulder, J.A., Halpin, J.A., Daczko, N.R., Orth, K., Meffre, S., Thompson, J.M., Morrissey, L.J., 2019. A Multiproxy provenance approach to uncovering the assembly of East Gondwana in Antarctica. Geology 47, 645-649. https://doi.org/10.1130/G45952.1 https://pubs.geoscienceworld.org/gsa/geology/article/47/7/645/570485/A-Multiproxy-provenance-approach-to-uncovering-the They include: Appendix DR1. Feldspar Pb-isotope method by laser ablation–quadrupole–inductively coupled plasma–mass spectrometry Appendix DR2. Detailed assessment of sediment provenance. Figure DR1. Simplified core logs. Figure DR2. Images of pebbles from NPB0101 Grab-19. Figure DR3. Provenance signals with depth in the sediment cores and feldspar type. Figure DR4. Glacial and oceanographic context for samples from the Mirny region, Davis Sea. Table DR1. Sample details. Table DR2. Feldspar Pb-isotope data. Table DR3. Zircon and monazite U-Pb data. Details of analytical methods from Mulder et al. (2019): SAMPLING AND METHODS The Pb-isotopic signature of feldspar reflects the petrogenesis of crystalline rocks and has been successfully used to map tectonothermal provinces, including in Antarctica (e.g., Flowerdew et al., 2013a). We characterized the feldspar Pb-isotopic composition of Indo-Antarctica and Australo-Antarctica using data from igneous and metamorphic rocks exposed between 50°E and 120°E (Fig. 1B; Tables DR1 and DR2 in the GSA Data Repository). Feldspar Pb-isotope data from Indo-Antarctica include the Archean–Cambrian basement rocks analyzed by Flowerdew et al. (2013a), complemented by new analyses from five Proterozoic charnockites in the Rayner Complex (Fig. 1B; Table DR1; for sample descriptions, see Halpin et al. [2012]). New data from Australo-Antarctica include 31 Archean–Cambrian samples from the Wilkes, Bunger, and Charcot Provinces (Fig. 1B; Table DR1; for sample descriptions, see Sheraton et al., 1992, 1995; Morrissey et al., 2017). To test if offshore detrital feldspar is a reliable proxy for onshore basement, we analyzed detrital feldspar grains from Pleistocene sediment in Ocean Drilling Program (ODP) core 188-1167A from Prydz Bay, Antarctica (Shipboard Scientific Party, 2001; Fig. 1B; Fig. DR1), which was sourced from basement terranes surrounding the Lambert Rift (Fig. 1B; Appendix DR2; O’Brien et al., 2007; Veevers et al., 2008). The subglacial geology surrounding the inferred paleo–plate boundary near Mirny Station was then investigated by analyzing detrital feldspar, monazite, and zircon grains from coarse (greater than 50 mm) Holocene sediments collected ~50–70 km offshore from Mirny Station during R/V Nathaniel B. Palmer cruise NB0101 (http://www.marine-geo.org/link/entry.php?id=NBP010; Fig. 1B, inset; Figs. DR1 and DR2). Ice-drainage models demonstrate that these sediments were sourced from small glaciers along the coastline near Mirny Station (Fig. 1B, inset; Appendix DR2; Figs. DR3 and DR 4; Rignot et al., 2011).

Issued: 2019-07-04

Data time period: 2016-01-01 to 2018-12-30

This dataset is part of a larger collection

Click to explore relationships graph

text: northlimit=-63.78249; southlimit=-72.91964; westlimit=46.75781; eastLimit=116.54297; projection=WGS84

Subjects

User Contributed Tags

Other Information

AU-ANL:PEAU : http://nla.gov.au/nla.party-617536 NLA Link

Identifiers

URI : data.aad.gov.au/metadata/records/AAS_4355_Mulder_etal_2019
Local : AAS_4355_Mulder_etal_2019
DOI : 10.26179/5D1D77FFCBFE3
global : 7c61b4f7-51d1-44bc-8f12-f473896f5f14

Similar data you may be interested in: