Restricted Values
activity
active
probably active
possibly active
probably inactive
inactive
unknown
faultDescription
craton boundary (inactive)
fault (active)
fault (inactive)
fault (possibly active)
fault (probably active)
fault (probably inactive)
suture (inactive)
suture (possibly active)
Note: descriptions can be modified by the addition of ‘feature inferred’; eg. ‘fault (probably inactive), feature inferred’
locationAccuracy
accurate
approximate
diagrammatic
uncertain
unknown
downQuadrant
N
NE
E
SE
S
SW
W
NW
none
unknown
polygType
ice
moraine
rock
exposure
concealed
exposed
uncertain
unknown
SIMPCODE
| SIMPCODE | SIMPCLASS | SIMPDESC |
|---|---|---|
| 10 | Other | Seasonal water and ice |
| 11 | Other | Unknown or unclassified rock |
| 20 | Quaternary-Neogene | Unconsolidated colluvium, talus, alluvium and undifferentiated till |
| 21 | Quaternary-Neogene | Youngest glacial gravel, till and supraglacial material (Holocene) |
| 22 | Quaternary-Neogene | Unconsolidated coastal ice-shelf till, beach or lake deposits |
| 23 | Quaternary-Neogene | Older glacial gravel and till (Miocene-Quaternary) |
| 30 | Cenozoic | Sedimentary rock with interbedded volcanic or volcaniclastic rock |
| 31 | Cenozoic | Volcanic rock - basalt to rhyolite lava flows and pyroclastic material |
| 32 | Cenozoic | Intrusive rock - granite, granodiorite, gabbro, or syenite (Eocene-Oligocene) |
| 40 | Mesozoic-Cenozoic | Sedimentary and volcanic rocks, pyroclastic material (Jurassic to Paleogene) |
| 41 | Mesozoic-Cenozoic | Volcanic rock (Jurassic-Paleogene) |
| 42 | Mesozoic-Cenozoic | Ferrar Igneous Province and related volcanic and sedimentary rock (Jurassic) |
| 43 | Mesozoic-Cenozoic | Silicic volcanic and continental sedimentary rock (Jurassic) |
| 44 | Mesozoic-Cenozoic | Unmetamorphosed granitoid, gabbro and other intrusive rock |
| 45 | Mesozoic-Cenozoic | Metamorphosed gneiss and migmatite (Triassic, Cretaceous) |
| 50 | Paleozoic-Mesozoic | Beacon Supergroup and other sandstone-rich sedimentary rock (Devonian-Triassic) |
| 60 | Proterozoic-Paleozoic | Intrusive rock - granitoid, diorite, gabbro and orthogneiss |
| 61 | Proterozoic-Paleozoic | Folded low-grade metasedimentary and metavolcanic rock |
| 62 | Proterozoic-Paleozoic | Low to medium-grade metamorphic rock - schist, marble, metavolcanic, metasandstone |
| 63 | Proterozoic-Paleozoic | High-grade metamorphic rock - orthogneiss, paragneiss, schist and amphibolite |
| 70 | Archean | Metamorphic and intrusive rock - schist, gneiss, granulite, migmatite and anatectite |
ageCode
| ageCode | |
|---|---|
| H | Holocene |
| Q | Quaternary |
| G | Neogene |
| P | Paleogene |
| Cz | Cenozoic |
| K | Cretaceous |
| J | Jurassic |
| T | Triassic |
| Mz | Mesozoic |
| Y | Permian |
| C | Carboniferous |
| D | Devonian |
| S | Silurian |
| O | Ordovician |
| E | Cambrian |
| Pz | Paleozoic |
| N | Neoproterozoic |
| M | Mesoproterozoic |
| L | Paleoproterozoic |
| Rz | Proterozoic |
LITHCODE
| LITHCODE | Description | Heading |
|---|---|---|
| c | cover sediments | Sedimentary rocks |
| s | mudstone, siltstone, sandstone, conglomerate | Sedimentary rocks |
| l | limestone | Sedimentary rocks |
| j | volcanogenic sediments | Sedimentary rocks |
| w | mixed sediments and volcanic rocks | Sedimentary rocks |
| f | felsic | Volcanic rocks |
| a | intermediate | Volcanic rocks |
| b | mafic to ultramafic | Volcanic rocks |
| v | felsic to mafic | Volcanic rocks |
| g | felsic | Intrusive rocks |
| i | mixed intrusives | Intrusive rocks |
| h | intermediate | Intrusive rocks |
| d | mafic | Intrusive rocks |
| u | mafic to ultramafic | Intrusive rocks |
| p | low-medium grade | Metamorphic rocks |
| m | metacarbonates | Metamorphic rocks |
| y | siliclastic | Metamorphic rocks |
| o | hornfels | Metamorphic rocks |
| t | volcanic rocks | Metamorphic rocks |
| r | felsic to intermediate intrusive rocks | Metamorphic rocks |
| e | mafic to ultramafic intrusive rocks | Metamorphic rocks |
| n | metamorphics | Metamorphic rocks |
| q | quartzite | Metamorphic rocks |
| x | complexes | Metamorphic rocks |
| z | tectonics | Metamorphic rocks |
| ? | rocks of unknown rock type |
quality
| quality | |
|---|---|
| 5 | Bedrock geology has been captured from mapping at 1:250,000 or more detailed; Cover sequences and occurrence of seasonal water have been reviewed and classified from ground studies, or aerial or satellite imagery; faults and structural data have been captured; rock outcrop polygon areas have been checked against LIMA or other satellite imagery (accurate to +/-100m); links to a source bibliography are complete. |
| 4 | Bedrock geology has been captured from mapping at regional scale (mostly less than 1:250,000); Cover sequences and occurrence of seasonal water have been reviewed and classified from aerial or satellite imagery, but there may not be local studies to constrain age; faults and structural data will generally have been captured; rock outcrop polygon areas have been checked against LIMA or other satellite imagery (accurate to +/-200m); links to a source bibliography are complete. |
| 3 | Bedrock geology has been captured from mapping at regional scale (mostly greater than 1:250,000); Cover sequences and seasonal water have been mapped but information for classification is limited; some faults and structural data have been captured; there has been some checking of rock outcrop polygon areas against satellite imagery (accurate to +/-500m); further links to bibliographic sources could be added. |
| 2 | Bedrock geology may be well-constrained, or alternatively interpreted at large scale mapping (e.g. greater than 1:1,000,000); There has been very limited review of cover sequences and seasonal water; faults and structural data are unlikely to have been captured; rock outcrop polygon areas could be improved by checking against satellite imagery (only accurate to +/-1000m). |
| 1 | Quality rank refers to the early stages of work where little or no information has been attributed to rock outcrop polygons; and polygons have not been checked for their locational position and/or shape. In some places there is no information to assign (where outcrops may not have been visited or had geology inferred) in which case polygons have been attributed as ‘unknown’. There are no places where an entire 1 degree grid polygon is unknown, so GeoMAP v.2022-08 does not have any areas quality = 1. |
| 0 | No mapable geological feature is recorded in this area. |
tectonicProvince
Antarctic Peninsula
Bowers Terrane
Central Antarctic Craton
Ellsworth-Whitmore Mountains
Haag Nunataks
Indo-Antarctic Craton
Kalahari Craton
Mawson Craton
Robertson Bay Terrane
Thurston Island
Transantarctic Mountains
Weddell Sea region
West Antarctic Rift System
Wilson Terrane