Bauer, Wilfried; Fitzner, Bernd (2011): Tab.1: Composition of salt crusts and host rocks [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.757450, Supplement to: Bauer, W; Fitzner, B (2005): Salt crusts on bedrock exposures in Dronning Maud Land, East Antarctica. Polarforschung, 73(1), 1-4, hdl:10013/epic.29906.d001
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Abstract:
Gypsum and calcite crusts were found on many outcrops of the metamorphic basement and on moraines in Dronning Maud Land. For the first time the copper mineral connellite was found in such crusts. Salt crust and efflorescences indicate an important role of chemical weathering even in a cold and arid climate such as the Antarctic interior. Findings of salt efflorescenees few centimetres beneath the rock surface suggest the contribution of salt crystallization to the formation of the typical Antarctic cavernous or honeycomb weathering features.
Coverage:
Median Latitude: -73.428444 * Median Longitude: -4.538989 * South-bound Latitude: -75.016000 * West-bound Longitude: -12.812500 * North-bound Latitude: -71.986700 * East-bound Longitude: 3.900500
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Description | Description | Bauer, Wilfried | |||
| 5 | Major components/lithology | Maj comp | Bauer, Wilfried | |||
| 6 | Minor components/lithology | Min comp | Bauer, Wilfried | including impurities from attached host rocks | ||
| 7 | Location of event | Location |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
27 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Description | 5 Maj comp | 6 Min comp | 7 Location |
|---|---|---|---|---|---|---|
| KB102a | -74.314 | -9.866 | salt crust | calcite | quartz, microcline | Heimfront-fjella, Antarctica |
| KB102b | -74.314 | -9.866 | orthogneiss, host rock of KB102a | plagioclase, microcline, quartz, biotite | chlorite, calcite, muscovite, zircon | Heimfront-fjella, Antarctica |
| KB146 | -74.572 | -11.135 | amphibolite, host rock of KB147 | magnesio-hornblende, plagioclase | biotite, chlorite, quartz, epidote, chalcopyrite, pyrrhotite | Heimfront-fjella, Antarctica |
| KB147 | -74.570 | -11.135 | salt crust | gypsum | connellite | Heimfront-fjella, Antarctica |
| WB208 | -71.987 | 3.081 | salt crust | gypsum | quartz, biotite, microcline, plagioclase | Mühlig-Hofmann-Gebirge, Antarctica |
| WB209 | -71.987 | 3.081 | orthogneiss, host rock of WB208 | quartz, biotite, plagioclase | microcline, chlorite, chalcopyrite, zircon | Mühlig-Hofmann-Gebirge, Antarctica |
| WB255 | -72.049 | 3.900 | salt crust | gypsum | chlorite, plagioclase, quartz | Mühlig-Hofmann-Gebirge, Antarctica |
| WB256 | -72.049 | 3.900 | Bt-Pl-gneiss, host rock of WB255 | quartz, biotite, plagioclase | microcline, zircon, chalcopyrite | Mühlig-Hofmann-Gebirge, Antarctica |
| B22.1.94 | -75.016 | -12.812 | salt crust | calcite | none | Heimfront-fjella, Antarctica |