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Vol 225
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275
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RUS ENG
Geology

Age of hydrothermal processes in the central iberian zone (Spain) according TO U-Pb dating of cassiterite and apatite

Authors:
N. G. Rizvanova1
S. G. Skublov2
E. V. Cheremazova3
About authors
  • 1 — Institute of Precambrian Geology and Geochronology of Russian Academy of Sciences
  • 2 — Institute of Precambrian Geology and Geochronology of Russian Academy of Sciences
  • 3 — Mineral Exploration Network Ltd.
Date submitted:
2017-01-08
Date accepted:
2017-02-25
Date published:
2017-06-25

Abstract

Results of isotope-geochemical studies by PbLS step-leaching method of cassiterite from greisens located in Logrosán granite massif (Central Iberian Zone, Spain) and apatite from hydrothermal quartz-apatite vein on its exocontact indicate that in both cases a hydrothermal event is recorded in the interval of 114-126 Ma, which has been accompanied by lead supply. Within the limits of estimation error, the same age around 120 Ma corresponds to crystallization of hydrothermal apatite, formation of sticks and micro-inclusions in cassiterite from greisens and is suggested for Au-As-Sb-Pb ore mineralization, which calls for further confirmation. Xenogenous zircon from quartz-apatite vein does not react to this relatively low-temperature hydrothermal event either with building up new generations (sticks, areas of recrystallization) or with rebalancing of U-Pb isotope system. The age of greisen formation has been confirmed to be around 305 Ma by PbLS method on final phases of cassiterite leaching. Earlier it was estimated with 40 Ar/ 39 Ar method on muscovite. 

10.18454/pmi.2017.3.275
Go to volume 225

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3. U-Pb isotopic dating of cassiterite: Development of reference materials and in situ applications by LA-SF-ICP-MS. Chemical Geology. 30 March 2022, Vol. 593, DOI: 10.1016/j.chemgeo.2022.120754 [Scopus] (cited: 23)
4. The Salcombe metal cargoes: New light on the provenance and circulation of tin and copper in Later Bronze Age Europe provided by trace elements and isotopes. Journal of Archaeological Science. February 2022, Vol. 138, DOI: 10.1016/j.jas.2022.105543 [Scopus] (cited: 18)
5. Accessory cassiterite as an indicator of the rare metal petrogenesis and ore-genesis. Zapiski Rossiiskogo Mineralogicheskogo Obshchestva. 2021, Vol. 150, P. 1-37. DOI: 10.31857/S0869605521040031 [Scopus] (cited: 1)
6. High-precision ID-TIMS cassiterite U-Pb systematics using a low-contamination hydrothermal decomposition: Implications for LA-ICP-MS and ore deposit geochronology. Geochronology. 2 July 2020, Vol. 2, P. 425-441. DOI: 10.5194/gchron-2-425-2020 [Scopus] (cited: 37)
7. A New Approach to ID-TIMS U–Pb Dating of Cassiterite by the Example of the Pitkäranta Tin Deposit. Doklady Earth Sciences. 1 March 2020, Vol. 491, P. 146-149. DOI: 10.1134/S1028334X20030150 [Scopus] (cited: 12)
8. U–Pb geochronology of tin deposits associated with the Cornubian Batholith of southwest England: Direct dating of cassiterite by in situ LA-ICPMS. Mineralium Deposita. 1 January 2020, Vol. 55, P. 1-20. DOI: 10.1007/s00126-019-00870-y [Scopus] (cited: 44)
9. Isotope systematics and chemical composition of tin ingots from Mochlos (Crete) and other Late Bronze Age sites in the eastern Mediterranean Sea: An ultimate key to tin provenance?. PLoS ONE. 1 October 2018, Vol. 14, DOI: 10.1371/journal.pone.0218326 [Scopus] (cited: 49)
10. In situ LA-ICPMS U–Pb dating of cassiterite without a known-age matrix-matched reference material: Examples from worldwide tin deposits spanning the Proterozoic to the Tertiary. Chemical Geology. 20 April 2018, Vol. 483, P. 410-425. DOI: 10.1016/j.chemgeo.2018.03.008 [Scopus] (cited: 77)
11. The first data on the U-Pb age (TIMS and LA-ICP-MS) of rutile from the ichetju polymineral occurrence, the Middle Timan. Journal of Mining Institute. 2018, Vol. 232, P. 357-363. DOI: 10.31897/pmi.2018.4.357 [Scopus] (cited: 7)
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Age of hydrothermal processes in the central iberian zone (Spain) according TO U-Pb dating of cassiterite and apatite

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