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Generalized Surficial Geologic Map of the Denver 1 degree x 2 degree Quadrangle, Colorado

Entry ID: USGS_Map_MF-2347

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Summary

Abstract: Antarctic sediments and sea-ice are important regulators in global biogeochemical and atmospheric cycles. These ecosystems contain a diverse range of bacteria whose biogeochemical roles remains largely unknown and which inhabit what are continually low temperature habitats. An integrated molecular and chemical approach will be used to investigate the coupling of microbial biogeochemical processes ... with community structure and cold adaptation within coastal Antarctic marine sediments and within sea-ice. Overall the project expects to make an important contribution to our understanding of biological processes within low temperature habitats.

DATA SET ORGANISATION:

The dataset is organised on the basis of publication and is organised on the basis of the following sections:

1. SEDIMENT SAMPLES and ISOLATES

Samples collected are described in terms of location, type and where data were obtained chemical features. The designation, source, media used for cultivation and isolation and availability of sediment and other related isolates are provided. Samples included are from the following locations: Clear Lake, Pendant Lake, Scale Lake, Ace Lake, Burton Lake, Ekho Lake, Organic Lake, Deep lake and Taynaya Bay (Burke Basin), Vestfold Hills region; and the Mertz Glacier Polynya region.

2. BIOMASS and ENZYME ACTIVITY DATA

Biomass, numbers and extracellular enzyme activity data are provided for Bacteria and Archaea populations from Mertz Glacier Polynya shelf sediments.

3. FATTY ACID and TETRAETHER LIPID DATA

Phospholipid and tetraether lipid data are provided for Mertz Glacier Polynya shelf sediments. Whole cell fatty acid data are provided for various bacterial isolates described officially as new genera or species.

4. RNA HYBRIDISATION DATA

RNA hybridisation data for Mertz Glacier Polynya sediment samples is provided, including data for oligonucleotide probes specifc for total Bacteria, Archaea, the Desulfosarcina group (class Deltaproteobacteria, sulfate reducing bacterial clade), phylum Planctomycetes, phylum Bacteroidetes (Cytophaga-Flavobacterium-Bacteroides), class Gammaproteobacteria, sulfur-oxidizing and related bacteria (a subset of class Gammaproteobacteria) and Eukaryota.

5. PHYLOGENETIC DATA

16S rRNA gene sequence data are indicated including aligned datasets for three clone libraries derived from the Mertz Glacier Polynya including GenBank accession numbers. Sequence accession numbers are provided for Vestfold Hills lake sediment samples. In addition GenBank numbers are provided for denaturing gradient gel electrophoresis band sequence data from Mertz Glacier Polynya shelf sediment. Other forms of this DGGE data (banding profile analysis) are available in reference Bowman et al. 2003 (AAD ref 10971).

Related URL

Link: GET DATA

Description: Entrez Nucleotide Sequence Search - accession numbers required

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

	N: -66.0	S: -69.0	E: 144.0	W: 70.0

Min Depth: 5 M

Temporal Coverage

Start Date: 2000-07-01

Stop Date: 2001-06-30

Location Keywords

OCEAN > SOUTHERN OCEAN

GEOGRAPHIC REGION > POLAR

OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS

Data Resolution

Latitude Resolution: 14m
Longitude Resolution: 14m
Horizontal Resolution Range: 1 meter - < 30 meters

Science Keywords

LAND SURFACE > TOPOGRAPHY

ISO Topic Category

ELEVATION

IMAGERY/BASE MAPS/EARTH COVER

Platform

AERIAL PHOTOGRAPHS

Quality Topographic features in the Heard Island Coastal Area were mapped by a photogrammetrist from the ortho-rectified imagery described in the metadata record &Heard Island Coastal Orthophotos derived from Non-Metric Photography& (ID - HIC_NMOrthos).
The features were mapped using Erdas 8.5 and ArcView 8.1. The photography only covered coastal regions and excluded glaciers. Photography was ...

Access Constraints The data are publicly available for download at the url given below.

Use Constraints This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at the URL below when using these data.

Ancillary Keywords

DRAINAGE

HEARD ISLAND

TOPOGRAPHY

WATERCOURSE

Data Set Progress

COMPLETE

Originating Center

Data Center

Australian Antarctic Data Centre, Australia

Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC Phone: +61 3 6232 3244 Fax: +61 3 6232 3351 Email: metadata at aad.gov.au Contact Address: Australian Antarctic Division 203 Channel Highway City: Kingston Province or State: Tasmania Postal Code: 7050 Country: Australia