Display Field: FIELDSITEID
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: The Geology of the Larsemann Hills, Princess Elizabeth Land, Antarctica GIS dataset contains the 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.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. 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. Fieldwork was supported by Australian Antarctic Science Program Project 2350 and U.S. National Science Foundation OPP-0228842
Copyright Text: 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)
Default Visibility: true
MaxRecordCount: 2000
Supported Query Formats: JSON, geoJSON, PBF
Min Scale: 0.0
Max Scale: 0.0
Supports Advanced Queries: true
Supports Statistics: true
Has Labels: false
Can Modify Layer: true
Can Scale Symbols: false
Use Standardized Queries: true
Supports Datum Transformation: true
Extent:
-
XMin: 8464427.951299999
YMin: -1.0896160657499999E7
XMax: 8504678.8528
YMax: -1.0863259886599999E7
Spatial Reference: 102100 (3857) LatestVCSWkid(0)
Drawing Info:
-
Renderer:
- Simple Renderer:
Symbol:
Description: N/A
Labeling Info:
-
Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
HasZ: false
HasM: false
Has Attachments: false
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field: null
Fields:
- OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
- Shape ( type: esriFieldTypeGeometry, alias: Shape )
- LAT ( type: esriFieldTypeDouble, alias: Latitude )
- SAMPLEID ( type: esriFieldTypeString, alias: Sample ID, length: 512 )
- ENO ( type: esriFieldTypeDouble, alias: ENO )
- long_ ( type: esriFieldTypeDouble, alias: long_ )
Supported Operations: Query Query Attachments Query Analytic Generate Renderer Return Updates
Iteminfo Thumbnail Metadata