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Zundel, Maximilian; Spiegel, Cornelia; Lisker, Frank; Monien, Patrick (2019): Apatite fission track and (U-Th-Sm)/He thermochronology of in-situ bedrock, western Marie Byrd Land, West Antarctica. PANGAEA, https://doi.org/10.1594/PANGAEA.905544, Supplement to: Zundel, M et al. (2019): Post Mid‐Cretaceous Tectonic and Topographic Evolution of Western Marie Byrd Land, WestAntarctica: Insights from Apatite FissionTrack and (U‐Th‐Sm)/He Data. Geochemistry, Geophysics, Geosystems, 20(12), 5831-5848, https://doi.org/10.1029/2019GC008667

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Abstract:
New low-temperature thermochronological data from granitic basement of western Marie Byrd Land provide insights into the still poorly constrained tectonic and topographic evolution of West Antarctica during and after continental breakup. Here we present the first apatite (U-Th-Sm)/He data from the Devonian Ford Granodiorite and the mid-Cretaceous Byrd Coast Granite suites from the Ford Ranges and the Edward VII Peninsula. Thermal history modeling integrating apatite (U-Th-Sm)/He dates of 109–68 Ma with revised apatite fission track data in combination with geologic information indicates a thermal history with diachronous enhanced cooling at ~100–60 Ma and subsequent slow cooling until the present-day. Enhanced cooling at ~100–70 Ma was related to activity of the West Antarctic rift system and to continental breakup, thereby exhuming most samples to shallow crustal levels. Localized cooling at ~75–60 Ma is interpreted as resulting from faulting in the eastern Ross Sea region. Slow cooling after ~70–60 Ma corresponds with formation of erosion surfaces in western Marie Byrd Land. Comparison of our results from western Marie Byrd Land with data from the literature indicates progressive formation of erosion surfaces from west to east along the Marie Byrd Land-Thurston Island crustal blocks. Late Cenozoic WARS rifting and Marie Byrd Land dome uplift appear to have collectively caused only minor exhumation of <1.5 km in western MBL.
Coverage:
Median Latitude: -77.604274 * Median Longitude: -151.785244 * South-bound Latitude: -78.150000 * West-bound Longitude: -155.790000 * North-bound Latitude: -76.400000 * East-bound Longitude: -145.330000
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21 datasets

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Datasets listed in this publication series

  1. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1139, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905543
  2. Zundel, M; Spiegel, C; Lisker, F et al. (2019): (U-Th-Sm)/He thermochronology of in-situ bedrock from site Import_Apatite-(U-Th-Sm)He-data, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905563
  3. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1104, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905524
  4. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1105, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905525
  5. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1107, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905526
  6. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1108, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905527
  7. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1110, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905528
  8. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1111, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905529
  9. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1114, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905530
  10. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1120, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905531
  11. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1123, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905532
  12. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1125, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905533
  13. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1127, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905534
  14. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1128, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905535
  15. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1129, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905536
  16. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1131, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905537
  17. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1132, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905538
  18. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1134, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905539
  19. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1136, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905540
  20. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1137, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905541
  21. Zundel, M; Spiegel, C; Lisker, F et al. (2019): Apatite fission track lenghts of in-situ bedrock from site 1138, western Marie Byrd Land, West Antarctica. https://doi.org/10.1594/PANGAEA.905542