2001
DOI: 10.1093/petrology/42.11.2015
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P–T–t Evolution of Ultrahigh-Temperature Granulites from the Saxon Granulite Massif, Germany. Part II: Geochronology

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Cited by 60 publications
(42 citation statements)
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“…However, if the zircon ages of c. 340 Ma in these granulites do correspond to the peak granulite facies conditions [7], and the 40 Ar/ 39 Ar mica cooling cooling ages are within the range of 330-340 Ma [60], the exhumation rate of the Śnieżnik granulites would have to be by an order of magnitude higher. A similar scenario of extremely fast exhumation (10-15 mm/year) is known from the 340 Ma granulites of the Granulitgebirge [12] and Erzgebirge [2,3].…”
Section: Timing Of P-t Paths In the Granulitessupporting
confidence: 52%
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“…However, if the zircon ages of c. 340 Ma in these granulites do correspond to the peak granulite facies conditions [7], and the 40 Ar/ 39 Ar mica cooling cooling ages are within the range of 330-340 Ma [60], the exhumation rate of the Śnieżnik granulites would have to be by an order of magnitude higher. A similar scenario of extremely fast exhumation (10-15 mm/year) is known from the 340 Ma granulites of the Granulitgebirge [12] and Erzgebirge [2,3].…”
Section: Timing Of P-t Paths In the Granulitessupporting
confidence: 52%
“…They display a range of PT peak metamorphic conditions (exceeding 1000 o C and 20 kbar in several cases), and various isotopic ages, with two distinct, albeit broadly defined groups at c. 400 and 340 Ma [e.g., 4,[10][11][12]. Originally, the older granulites were interpreted as related to the subduction of continental crust, whereas the younger ones were regarded as products of deep crustal processes connected with collision during the Variscan orogeny [1].…”
Section: Introductionmentioning
confidence: 99%
“…Our Re-Os molybdenite age is in good agreement with this CHIME age for the same pluton, which was interpreted as recording cooling to about 700ºC (Suzuki and Adachi, 1998). This temperature is in agreement with high closure temperature estimates for U-Pb systematics in monazite (e.g., Romer and Rötzler, 2001;Bingen and van Breemen, 1998).…”
Section: Results and Interpretationsupporting
confidence: 89%
“…We chose to analyze monazites because this mineral generally does not contain inherited cores and does not suffer radiogenic Pb loss at low temperatures, both common problems in zircons (see Parrish 1990 for discussion). Additionally, the closing temperature of monazite, although slightly lower than that of zircon (for details see Romer and Rötzler 2001), is sufficiently high to maintain the system unperturbed by low-temperature postcrystallization events.…”
Section: U-pb Geochronologymentioning
confidence: 99%