Description: This layer comprises geological unit data for Antarctica, rendered with lithostratagraphic symbology . It represents a synthesis existing published and unpublished mapping of the geology of this area in a single dataset for use at a regional to local scale.
The dataset consists of polygon geometry with each polygon having attributes describing the unit type, name, age, lithology, stratigraphy, and supporting background information, where this is known. This layer complies with the GeoSciML Lite standard for GeologicalUnitView and fields required by that standard were populated using the CGI Controlled Vocabulary (v2016.01).
Copyright Text: Cox, S.C., Smith Lyttle, B. and the GeoMAP team 2022
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basalt to rhyolite lava flows and pyroclastic material"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[230,76,0,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[230,76,0,255],"width":1}},"value":"32","label":"Intrusive rock - granite, granodiorite, gabbro, or syenite (Eocene-Oligocene)"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[205,205,102,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[205,205,102,255],"width":1}},"value":"40","label":"Sedimentary and volcanic rocks, pyroclastic material (Jurassic to Paleogene)"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[137,137,68,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[137,137,68,255],"width":1}},"value":"41","label":"Volcanic rock (Jurassic-Paleogene)"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[168,112,0,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[168,112,0,255],"width":1}},"value":"42","label":"Ferrar Igneous Province and related volcanic and sedimentary rock (Jurassic)"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[215,158,158,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[215,158,158,255],"width":1}},"value":"43","label":"Silicic volcanic and continental sedimentary rock (Jurassic)"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[230,0,169,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[230,0,169,255],"width":1}},"value":"44","label":"Unmetamorphosed granitoid, gabbro and other intrusive rock"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[68,101,137,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[68,101,137,255],"width":1}},"value":"45","label":"Metamorphosed gneiss and migmatite (Triassic, Cretaceous)"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[152,230,0,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[152,230,0,255],"width":0.4}},"value":"50","label":"Beacon Supergroup and other sandstone-rich sedimentary rock (Devonian-Triassic)"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[255,115,223,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[255,115,223,255],"width":0.4}},"value":"60","label":"Intrusive rock - granitoid, diorite, gabbro and orthogneiss"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[122,182,245,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[122,182,245,255],"width":0.4}},"value":"61","label":"Folded low-grade metasedimentary and metavolcanic rock"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[102,119,205,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[102,119,205,255],"width":0.4}},"value":"62","label":"Low to medium-grade metamorphic rock - schist, marble, metavolcanic, metasandstone"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[202,122,245,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[202,122,245,255],"width":0.4}},"value":"63","label":"High-grade metamorphic rock - orthogneiss, paragneiss, schist and amphibolite"},{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[137,68,101,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[137,68,101,255],"width":0.4}},"value":"70","label":"Metamorphic and intrusive rock - 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