20260915 14574500 1.0 ISO 19139 Metadata Implementation Specification FALSE GeologicUnitPolygons1M 002 72.577237 167.998035 -54.777736 -9.178480 1 GEOLOGY.GeologicUnitPolygonSpec1M Relationship GeologicUnitPolygonSpec1M Relationship Geographic GCS_GDA_1994 Angular Unit: Degree (0.017453) <GeographicCoordinateSystem xsi:type='typens:GeographicCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.1'><WKT>GEOGCS[&quot;GCS_GDA_1994&quot;,DATUM[&quot;D_GDA_1994&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433],AUTHORITY[&quot;EPSG&quot;,4283]]</WKT><XOrigin>-400</XOrigin><YOrigin>-400</YOrigin><XYScale>999999999.99999988</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>8.98315284119521e-009</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><LeftLongitude>-180</LeftLongitude><WKID>4283</WKID><LatestWKID>4283</LatestWKID></GeographicCoordinateSystem> 20260917 14484900 20150814 13294300 ItemDescription 150000000 5000 20260917 53e4b102-6ace-4cd9-8a57-de1b19968892 ANZLIC Metadata Profile 1.1 <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:16 0 16 0;"><SPAN>The Larsemann Hills region is dominated by two major lithological associations, a Mesoproterozoic to Neoproterozoic felsic dominated orthogneiss complex (Søstrene Orthogneiss) which occurs as basement to a sequence of pelitic, psammitic and felsic paragneisses (Brattstrand Paragneiss) and felsic intrusives. Geochonrology indicates that the region experienced medium to low pressure granulite facies metamorphism during the Early Paleozoic (~515-530 Ma). Although the paragneiss sequences record no evidence of earlier metamorphism, relics of a previous metamorphic event at ~1000-950 Ma are preserved in the Søstrene Orthogneiss. Within the Larsemann Hills region, the Early Paleozoic event is characterised by peak metamorphism of ~7 kbar at ~800-850°C, with the post-peak evolution characterised by decompression, with some cooling, to 4 kbars at 750°C, then to 2-3 kbar at 600-650°C during final stages of orogenesis, with exhumation largely driven by crustal extension. </SPAN></P><P STYLE="margin:16 0 16 0;"><SPAN>The Larsemann Hills are unique for the variety of phosphorous and boron minerals, some of which are found in spectacular specimens, and others of which are not found elsewhere in the world. Three of the nine phosphate minerals found are new to science: stornesite-(yytrium), tassieite and chopinite. </SPAN></P><P STYLE="margin:16 0 16 0;"><SPAN>For this dataset release the stratigraphic units from the 2007 map have been named to conform to stratigraphic nomenclature and reserved in the Australian Stratigraphic Units Database.</SPAN></P><P><SPAN>Fieldwork supported by Australian Antarctic Science Program </SPAN><SPAN>P</SPAN><SPAN>roject 2350 and U.S. National Science Foundation OPP-0228842</SPAN></P></DIV></DIV></DIV> © Commonwealth of Australia (Geoscience Australia) 2012. This material is released under the Creative Commons Attribution 3.0 Australia Licence - http://creativecommons.org/licenses/by/3.0/au/ Esri ArcGIS 10.2.0.3389 Geological Units Larsemann Hills ‐ Polygons GEOLOGY.GeologicUnitPolygons1M 20121130 Geoscience Australia - Minerals Director - Information Resources Section 1800 800 173 (02) 6249 9999 GPO Box 378 Canberra ACT 2601 Australia sales@ga.gov.au http://www.ga.gov.au/sales Geoscience Australia - MNHD Divisional Information Manager - MNHD 1800 800 173 (02) 6249 9999 GPO Box 378 Canberra ACT 2601 Australia sales@ga.gov.au http://www.ga.gov.au/sales ANZLIC Search Words 20080515 Version 2.1 GEOSCIENCES-Geology 1000000 1 72.577237 167.998035 -9.178480 -54.777736 Spatial data of the basement geology of the Larsemann Hills. This dataset is derived from the map product ‘Geology of the Larsemann Hills, Princess Elizabeth Land, Antarctica’, published in 2007. Carson, C.J., Woods, M.A., Butcher, G.A., McLennan, S., 2026, Geology of the Larsemann Hills GIS Dataset, Geoscience Australia, Commonwealth of Australia, Canberra. © Commonwealth of Australia (Geoscience Australia) 2026. With the exception of the Commonwealth Coat of Arms and where otherwise noted, this product is provided under a Creative Commons Attribution 4.0 International Licence. (http://creativecommons.org/licenses/by/4.0/legalcode) GIS Dataset Thematic Antarctic data Geology Australian Antarctic Territory Earth Sciences <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>© Commonwealth of Australia (Geoscience Australia) 2026. This material is released under the Creative Commons Attribution 4.0 International License.</SPAN></P></DIV></DIV></DIV> dataset EPSG 8.1.1 242703 Simple FALSE 242703 TRUE FALSE GeologicUnitPolygons1M Feature Class 242703 OBJECTID OBJECTID OID 4 0 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. MAPSYMBOL mapSymbol String 20 0 0 PLOTSYMBOL plotSymbol String 8 0 0 STRATNO stratno Integer 4 0 0 NAME name String 255 0 0 DESCR description String 255 0 0 TYPENAME geologicUnitType String 50 0 0 TYPE_URI geologicUnitType_uri String 255 0 0 GEOLHIST geologicHistory String 255 0 0 REPAGE_URI representativeAge_uri String 255 0 0 YNGAGE_URI representativeYoungerAge_uri String 255 0 0 OLDAGE_URI representativeOlderAge_uri String 255 0 0 LITHOLOGY lithology String 255 0 0 REPLITH_URI representativeLithology_uri String 255 0 0 MORPHOLOGY bodyMorphology String 50 0 0 OBSMETHOD observationMethod String 50 0 0 CONFIDENCE identityConfidence String 50 0 0 SOURCE source String 255 0 0 METADATA metadata_uri String 255 0 0 FRAME mappingFrame String 255 0 0 RESSCALE resolutionScale Integer 4 0 0 CAPTDATE captureDate Date 8 0 0 MODDATE modifiedDate Date 8 0 0 PLOTRANK plotRank SmallInteger 2 0 0 FEATUREID mappedFeatureID String 255 0 0 GEOLUNITID geologicUnitID String 255 0 0 SHAPE SHAPE Geometry 0 0 0 Feature geometry. ESRI Coordinates defining the features. SHAPE_Length SHAPE_Length Double 8 0 0 Length of feature in internal units. ESRI Positive real numbers that are automatically generated. SHAPE_Area SHAPE_Area Double 8 0 0 Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. Geoscience Australia - MNHD Divisional Information Manager - MNHD 1800 800 173 (02) 6249 9999 GPO Box 378 Canberra ACT 2601 Australia sales@ga.gov.au http://www.ga.gov.au/sales Geoscience Australia Sales Office +61 2 6249 9966 +61 2 6249 9960 GPO Box 378 Canberra ACT 2601 Australia sales@ga.gov.au http://www.ga.gov.au/sales/ ArcGIS file geodatabase 1 ArcView shapefile 1 MapInfo TAB 1 withheld 003 File Geodatabase Feature Class The 2012 dataset has been updated from the previous 2010 data by updating geological unit data to 2012 information in the Australian Stratigraphic Units Database (http://www.ga.gov.au/products-services/data-applications/reference-databases/stratigraphic-units.html), incorporating new published mapping in the Northern Territory and Queensland, and correcting errors or inconsistent data identified in the previous edition, particularly in the Phanerozoic geology of Western Australia. The attribute structure of the dataset has also been revised to be more compatible with the GeoSciML data standard, published by the IUGS Commission for Geoscience Information. The first edition of this national dataset was first released in 2008, with map data compiled largely from simplifying and edgematching existing 1:250 000 scale geological maps. Where these maps were not current, more recent source maps ranging in scale from 1:50 000 to 1:1 million were used. In some areas where the only available geological maps were old and poorly located, some repositioning of mapping using recent satellite imagery or geophysics was employed. Positional accuracy of this data ranges between 50 and 1000 metres, depending on the quality and scale of the original source data. Positional accuracy is attributed in the data at a feature level. True GA tests 20000101 Attribute data is the best available at the time of publication. All geological units are fully attributed with geological unit name, hierarchy, age, and lithological composition according to the Australian Stratigraphic Units Database (http://www.ga.gov.au/products-services/data-applications/reference-databases/stratigraphic-units.html), which is the authoritative lexicon of Australian lithostratigraphic units. True GA tests 20000101 This ESRI Geodatabase dataset has been constructed using ESRI's polygon and line topology verification, ensuring all geological unit (polygon) boundaries are overlain by corresponding geological contacts (lines). The data structure conforms to the Geoscience Australia standard for a digital geological map dataset, which is in turn compatible with the GeoSciML data transfer standard published by the IUGS Commission for the management and Application of Geoscience Information (www.geosciml.org). Systematic checks have been made of both unit and line information throughout the entire data set. True GA tests 20000101 The geological information is complete within the bounding polygon. 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