Data

Vestfold salts database, analyses and photographs

Australian Antarctic Data Centre
GORE, DAMIAN
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/5d688439bb408&rft.title=Vestfold salts database, analyses and photographs&rft.identifier=10.26179/5d688439bb408&rft.publisher=Australian Antarctic Data Centre&rft.description=A regional chemical boundary termed the 'salt line', in the Vestfold Hills of East Antarctica, was investigated using X-ray diffraction and electron probe analyses of surficial salts, and conductivity of surficial sediments. West of the salt line, halite and thenardite are abundant. These salts are derived from dispersal of marine aerosols, saturation of sediment by seawater during postglacial marine transgression, and glacial dispersal of salt-saturated fjord bottom sediments. East of the salt line, subglacial calcium carbonates and salts formed by chemical weathering of their substrates may be found. The weathering products are formed from chemically and morphologically diverse minerals, which include two minerals not found previously in Antarctica, dypingite and hydromagnesite, and the first confirmed occurrence of brushite. The field descriptions, analytical data and photographs used to make these determinations are contained on the AADC server and are available through the WWW. An Electron Probe Microanalyser (EPMA) was used to perform the analysis of samples. It should be noted that, these EPMA analyses are qualitative, and return 'counts' and as such they are dimensionless. The column headings in this dataset are: sample field number location easting northing altitude substrate geology field occurrence minerals/compounds reliability of identification analytical technique composition images Sodium (Na) Magnesium (Mg) Aluminum (Al) Silicon (si) Sulfur (S) Chlorine (Cl) Potassium (K) Calcium (Ca) Titanium (Ti) Manganese (Mn) Iron (Fe) Copper (Cu) image description&rft.creator=GORE, DAMIAN &rft.date=1999&rft.coverage=northlimit=-68.36275; southlimit=-68.84767; westlimit=77.67334; eastLimit=78.90381; projection=WGS84&rft.coverage=northlimit=-68.36275; southlimit=-68.84767; westlimit=77.67334; eastLimit=78.90381; 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 athttp://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=Vestfold_salts when using these data.&rft_subject=geoscientificInformation&rft_subject=MINERALS&rft_subject=EARTH SCIENCE&rft_subject=SOLID EARTH&rft_subject=ROCKS/MINERALS/CRYSTALS&rft_subject=ALTITUDE&rft_subject=ALUMINIUM (AL)&rft_subject=ANALYTICAL TECHNIQUE&rft_subject=CALCIUM (CA)&rft_subject=CHLORINE (CL)&rft_subject=COMPOSITION&rft_subject=COPPER (CU)&rft_subject=FIELD OCCURRENCE&rft_subject=FIELD NUMBER&rft_subject=EASTING&rft_subject=GEOLOGY&rft_subject=IMAGE DESCRIPTION&rft_subject=IMAGES&rft_subject=IRON (FE)&rft_subject=LOCATION&rft_subject=MANGANESE (MN)&rft_subject=MAGNESIUM (MG)&rft_subject=MINERALS/COMPOUNDS&rft_subject=NORTHING&rft_subject=RELIABILITY OF IDENTIFICATION&rft_subject=POTASSIUM (K)&rft_subject=SAMPLE&rft_subject=SILICON (SI)&rft_subject=SODIUM (NA)&rft_subject=SUBSTRATE&rft_subject=SULFUR (S)&rft_subject=TITANIUM (TI)&rft_subject=XRD > X-ray Diffractometer&rft_subject=LABORATORY&rft_subject=CONTINENT > ANTARCTICA&rft_subject=GEOGRAPHIC REGION > POLAR&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
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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 athttp://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=Vestfold_salts when using these data.

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Data are stored at the AADC server and available through the WWW at the listed URL. Data are also published in Gore et al. (2000) An atlas of the surficial salts of the Vestfold Hills ... ANARE Report 143 (available free as a 50+Mb pdf file from the Antarctic Division server).

Brief description

A regional chemical boundary termed the 'salt line', in the Vestfold Hills of East Antarctica, was investigated using X-ray diffraction and electron probe analyses of surficial salts, and conductivity of surficial sediments. West of the salt line, halite and thenardite are abundant. These salts are derived from dispersal of marine aerosols, saturation of sediment by seawater during postglacial marine transgression, and glacial dispersal of salt-saturated fjord bottom sediments. East of the salt line, subglacial calcium carbonates and salts formed by chemical weathering of their substrates may be found. The weathering products are formed from chemically and morphologically diverse minerals, which include two minerals not found previously in Antarctica, dypingite and hydromagnesite, and the first confirmed occurrence of brushite. The field descriptions, analytical data and photographs used to make these determinations are contained on the AADC server and are available through the WWW. An Electron Probe Microanalyser (EPMA) was used to perform the analysis of samples. It should be noted that, these EPMA analyses are qualitative, and return 'counts' and as such they are dimensionless. The column headings in this dataset are: sample field number location easting northing altitude substrate geology field occurrence minerals/compounds reliability of identification analytical technique composition images Sodium (Na) Magnesium (Mg) Aluminum (Al) Silicon (si) Sulfur (S) Chlorine (Cl) Potassium (K) Calcium (Ca) Titanium (Ti) Manganese (Mn) Iron (Fe) Copper (Cu) image description

Issued: 1999-10-06

Data time period: 1989-01-01 to 1993-03-01

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78.90381,-68.36275 78.90381,-68.84767 77.67334,-68.84767 77.67334,-68.36275 78.90381,-68.36275

78.288575,-68.60521

text: northlimit=-68.36275; southlimit=-68.84767; westlimit=77.67334; eastLimit=78.90381; projection=WGS84

Subjects
ALTITUDE | ALUMINIUM (AL) | ANALYTICAL TECHNIQUE | CALCIUM (CA) | CHLORINE (CL) | COMPOSITION | CONTINENT > ANTARCTICA | COPPER (CU) | EARTH SCIENCE | EASTING | FIELD NUMBER | FIELD OCCURRENCE | GEOGRAPHIC REGION > POLAR | GEOLOGY | IMAGE DESCRIPTION | IMAGES | IRON (FE) | LABORATORY | LOCATION | MAGNESIUM (MG) | MANGANESE (MN) | MINERALS | MINERALS/COMPOUNDS | NORTHING | POTASSIUM (K) | RELIABILITY OF IDENTIFICATION | ROCKS/MINERALS/CRYSTALS | SAMPLE | SILICON (SI) | SODIUM (NA) | SOLID EARTH | SUBSTRATE | SULFUR (S) | TITANIUM (TI) | XRD > X-ray Diffractometer | geoscientificInformation |

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

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