Depositional history of pre-Devonian strata and timing of Ross orogenic tectonism in the central Transantarctic Mountains, Antarctica

@article{Myrow2002DepositionalHO,  title={Depositional history of pre-Devonian strata and timing of Ross orogenic tectonism in the central Transantarctic Mountains, Antarctica},  author={Paul M. Myrow and Michael C. Pope and John W. Goodge and Woodward W. Fischer and Allison Ralph Palmer},  journal={Geological Society of America Bulletin},  year={2002},  volume={114},  pages={1070-1088},  url={https://api.semanticscholar.org/CorpusID:17130391}}
A combination of field mapping, detailed sedimentology, carbon isotope chemostratigraphy, and new paleontological finds provides a significantly improved understanding of the depositional and tectonic history of uppermost Neoproterozoic and lower Paleozoic strata of the central Transantarctic Mountains. On the basis of these data, we suggest revision of the existing stratigraphy, including introduction of new formations, as follows. The oldest rocks appear to record late Neoproterozoic… 

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68 References

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    M. Laird
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  • 1963
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