First in situ Lu–Hf garnet date for a lithium–caesium–tantalum (LCT) pegmatite from the Kietyönmäki Li deposit, Somero–Tammela pegmatite region, SW Finland [PDF]
European Journal of MineralogyThe in situ Lu–Hf geochronology of garnet, apatite, fluorite, and carbonate minerals is a fast-developing novel analytical method. It provides an alternative technique for age dating of accessory minerals in lithium–caesium–tantalum (LCT) rare-element ...
K. Szentpéteri +6 more
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Isotopic systematics of zircon indicate an African affinity for the rocks of southernmost India
Scientific Reports, 2020 Southern India lies in an area of Gondwana where multiple blocks are juxtaposed along Moho-penetrating structures, the significance of which are not well understood.
Chris Clark +3 more
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The Medicine Hat Block and the Early Paleoproterozoic Assembly of Western Laurentia
Geosciences, 2020 The accretion of the Wyoming, Hearne, and Superior Provinces to form the Archean core of western Laurentia occurred rapidly in the Paleoproterozoic. Missing from Hoffman’s (1988) original rapid aggregation model was the Medicine Hat block (MHB).
Jennifer N. Gifford +2 more
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Trace element analysis of granitic and radioactive rocks by spark source mass spectrometry with electrical detection [PDF]
Bulletin of the Geological Society of Finland, 1974 The content of 40 trace elements (Li, Be, B, F, P, Cl, Sc, Ti, Y, Co, Cu, Rb, Sr, Y, Zr, Nb, Sn, Cs, Ba, La-Lu, Hf, Ta, TI, Pb, Bi, Th, and U) was determined by spark source mass spectrometry in 25 samples from granites and U, Th and lanthanoid deposits ...
K. Nieminen, I. Yliruokanen
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Phase diagrams for the M2MoO4–Ln2(MoO4)3–Hf(MoO4)2 systems, where M = Li–Cs, Tl and Ln = La–Lu
Chimica Techno Acta, 2017 In this paper, the results of systematic studies of complex molybdate systems M2MoO4–Ln2(MoO4)3–Hf(MoO4)2 (M = Li–Cs, Tl; Ln = La–Lu) are presented. Subsolidus phase diagrams of ternary systems were constructed and new triple molybdates were obtained ...
Zh. G. Bazarova +5 more
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Communications Physics, 2023 The 176Lu-176Hf nuclear decay is a powerful tool to measure the age of astrophysical and geological events and has been used as a “cosmochronometer”.
Takehito Hayakawa +2 more
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Lu–Hf isotope systematics of fossil biogenic apatite and their effects on geochronology
Geochimica et Cosmochimica Acta, 2013 Abstract Reliable methods for direct dating of biogenic apatite from pre-Pleistocene fossils are currently not available, and recent attempts using the Lu–Hf decay system yielded highly inaccurate ages for both bones and teeth. The geological processes accounting for this poor accuracy of Lu–Hf chronometry are not yet understood.
Herwartz, Daniel +5 more
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Feasibility of blood self-sampling with HemaSpot HF for Anti-Clostridium tetani Toxin IgG detection
Scientific ReportsHealth research in humans often requires biosamples, e.g. blood. However, collecting venous blood samples poses multiple logistic challenges and needs to be carried by practitioners at study centres.
R. Kettlitz +4 more
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Temporal and Hf isotope geochemical evolution of southern Finnish Lapland from 2.77 Ga to 1.76 Ga [PDF]
Bulletin of the Geological Society of Finland, 2012 The southern Finnish Lapland area in the central part of the Fennoscandian shield is a geologically complex zone comprising several Archean blocks and Paleoproterozoic supracrustal belts all of which are intruded by voluminous Paleoproterozoic granites ...
L.S. Lauri +3 more
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Garnet Reference Materials for In Situ Lu‐Hf Geochronology
Geostandards and Geoanalytical ResearchIn situ garnet Lu‐Hf geochronology has the potential to revolutionise the chronology of petrological and tectonic processes, yet there is a paucity of well‐characterised reference materials to account for laser‐induced matrix‐dependant elemental fractionation.
Bruno V. Ribeiro +14 more
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