Identification of discrete low-temperature thermal events in polymetamorphic basement rocks using high spatial resolution FE‑SEM‑EDX U‑Th‑Pb dating of uraninite microcrystals

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Identification of discrete low-temperature thermal events in polymetamorphic basement rocks using high spatial resolution FE‑SEM‑EDX U‑Th‑Pb dating of uraninite microcrystals. / Finger, Fritz; Waitzinger, M.; Förster, H.J. et al.
In: Geology, Vol. 45.2017, No. 11, 23.08.2017, p. 991-994.

Research output: Contribution to journal › Article › Research › peer-review

Harvard

Finger, F, Waitzinger, M, Förster, HJ, Kozlik, M & Raith, J 2017, 'Identification of discrete low-temperature thermal events in polymetamorphic basement rocks using high spatial resolution FE‑SEM‑EDX U‑Th‑Pb dating of uraninite microcrystals', Geology, vol. 45.2017, no. 11, pp. 991-994. https://doi.org/10.1130/G39370.1

APA

Finger, F., Waitzinger, M., Förster, H. J., Kozlik, M., & Raith, J. (2017). Identification of discrete low-temperature thermal events in polymetamorphic basement rocks using high spatial resolution FE‑SEM‑EDX U‑Th‑Pb dating of uraninite microcrystals. Geology, 45.2017(11), 991-994. https://doi.org/10.1130/G39370.1

Vancouver

Finger F, Waitzinger M, Förster HJ, Kozlik M, Raith J. Identification of discrete low-temperature thermal events in polymetamorphic basement rocks using high spatial resolution FE‑SEM‑EDX U‑Th‑Pb dating of uraninite microcrystals. Geology. 2017 Aug 23;45.2017(11):991-994. doi: 10.1130/G39370.1

Author

Finger, Fritz ; Waitzinger, M. ; Förster, H.J. et al. / Identification of discrete low-temperature thermal events in polymetamorphic basement rocks using high spatial resolution FE‑SEM‑EDX U‑Th‑Pb dating of uraninite microcrystals. In: Geology. 2017 ; Vol. 45.2017, No. 11. pp. 991-994.

Bibtex - Download

@article{ea252fa386a942268686de4606c6880d,
title = "Identification of discrete low-temperature thermal events in polymetamorphic basement rocks using high spatial resolution FE‑SEM‑EDX U‑Th‑Pb dating of uraninite microcrystals",
abstract = "Low-temperature thermal events of Permian (ca. 265 Ma) and Triassic (ca. 215 Ma) age that predate medium-grade regional metamorphism were identified using high spatial resolution field emission–scanning electron microscopy–energy dispersive X-ray (FE-SEM-EDX) U-Th-Pb dating of uraninite microcrystals in basement rocks of the Tauern Window, Eastern Alps. Three novel points of generic geochronological importance are raised in this study. First, uraninite can be meaningfully dated with FE-SEM-EDX methods, with moderate precision. Second, uraninite is geochronologically robust, even at microcrystal scale, and can survive at least medium-grade metamorphic overprint without being reset. Third, uraninite microcrystals are powerful tools for identifying and dating discrete low-temperature thermal events in orogenic belts. Dating of uraninite microcrystals should be considered an important complementary geochronological method in the study of polymetamorphic rocks.",
author = "Fritz Finger and M. Waitzinger and H.J. F{\"o}rster and Michael Kozlik and Johann Raith",
year = "2017",
month = aug,
day = "23",
doi = "10.1130/G39370.1",
language = "English",
volume = "45.2017",
pages = "991--994",
journal = "Geology",
issn = "0091-7613",
publisher = "Geological Society of America",
number = "11",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Identification of discrete low-temperature thermal events in polymetamorphic basement rocks using high spatial resolution FE‑SEM‑EDX U‑Th‑Pb dating of uraninite microcrystals

AU - Finger, Fritz

AU - Waitzinger, M.

AU - Förster, H.J.

AU - Kozlik, Michael

AU - Raith, Johann

PY - 2017/8/23

Y1 - 2017/8/23

N2 - Low-temperature thermal events of Permian (ca. 265 Ma) and Triassic (ca. 215 Ma) age that predate medium-grade regional metamorphism were identified using high spatial resolution field emission–scanning electron microscopy–energy dispersive X-ray (FE-SEM-EDX) U-Th-Pb dating of uraninite microcrystals in basement rocks of the Tauern Window, Eastern Alps. Three novel points of generic geochronological importance are raised in this study. First, uraninite can be meaningfully dated with FE-SEM-EDX methods, with moderate precision. Second, uraninite is geochronologically robust, even at microcrystal scale, and can survive at least medium-grade metamorphic overprint without being reset. Third, uraninite microcrystals are powerful tools for identifying and dating discrete low-temperature thermal events in orogenic belts. Dating of uraninite microcrystals should be considered an important complementary geochronological method in the study of polymetamorphic rocks.

AB - Low-temperature thermal events of Permian (ca. 265 Ma) and Triassic (ca. 215 Ma) age that predate medium-grade regional metamorphism were identified using high spatial resolution field emission–scanning electron microscopy–energy dispersive X-ray (FE-SEM-EDX) U-Th-Pb dating of uraninite microcrystals in basement rocks of the Tauern Window, Eastern Alps. Three novel points of generic geochronological importance are raised in this study. First, uraninite can be meaningfully dated with FE-SEM-EDX methods, with moderate precision. Second, uraninite is geochronologically robust, even at microcrystal scale, and can survive at least medium-grade metamorphic overprint without being reset. Third, uraninite microcrystals are powerful tools for identifying and dating discrete low-temperature thermal events in orogenic belts. Dating of uraninite microcrystals should be considered an important complementary geochronological method in the study of polymetamorphic rocks.

U2 - 10.1130/G39370.1

DO - 10.1130/G39370.1

M3 - Article

VL - 45.2017

SP - 991

EP - 994

JO - Geology

JF - Geology

SN - 0091-7613

IS - 11

ER -

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