Absolute Age Evidence of Early to Middle Ordovician Volcanism in Peninsular Malaysia
Current Science, 2018 Evidence of Early Palaeozoic volcanism in Peninsular Malaysia is largely represented by felsic Gerik- Dinding meta-volcanic rocks; however, reliable absolute ages for the meta-volcanic rocks are still lacking.
L. Quek +11 more
semanticscholar +1 more source
SIMS zircon ages and Nd isotope systematics of the 2.2 Ga mafic intrusions in northern and eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2010 Using the SIMS, ID-TIMS and Sm-Nd isotopic methods and the electron microprobe, we have studied several differentiated mafic intrusions of the c. 2.2 Ga gabbro-wehrlite association (GWA) from four Paleoproterozoic schist belts and the Archean Kuhmo ...
E. Hanski, H. Huhma, J. Vuollo
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U-Pb zircon geochronology of selected Archaean migmatites in eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2007 U-Pb SIMS data on eight samples (four mesosome-leucosome pairs) from migmatites in gneiss complexes are presented from the western part of the Archaean Karelian craton, eastern Finland. Most zircon grains in the mesosomes yield ages between 2.84 Ga and 2.
A. Käpyaho +2 more
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Age dating stellar populations in the near infrared: an absolute age indicator from the presence/absence of red supergiants [PDF]
, 2012 The determination of age is a critical component in the study of a population of stellar clusters. In this letter we present a new absolute age indicator for young massive star clusters based on J-H colour.
J. Gazak +6 more
semanticscholar +1 more source
Age and isotopic fingerprints of some plutonic rocks in the Wiborg rapakivi granite batholith with special reference to the dark wiborgite of the Ristisaari Island [PDF]
Bulletin of the Geological Society of Finland, 2014 The mid-Proterozoic, locus classicus Wiborg rapakivi granite batholith of southeastern Finland and adjacent Russia comprises a varying, bimodal (silicic-basic) sequence of plutonic, subvolcanic, and volcanic rocks. At the current level of erosion silicic
O.T. Rämö +5 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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Is the "heart age" concept helpful or harmful compared to absolute cardiovascular disease risk? An experimental study [PDF]
, 2015 Background. Cardiovascular disease (CVD) prevention guidelines are generally based on the absolute risk of a CVD event, but there is increasing interest in using heart age to motivate lifestyle change when absolute risk is low.
Newell, Ben R. +17 more
core +1 more source
A self-consistent, absolute isochronal age scale for young moving groups in the solar neighbourhood [PDF]
, 2015 We present a self-consistent, absolute isochronal age scale for young (< 200 Myr), nearby (< 100 pc) moving groups in the solar neighbourhood based on homogeneous fitting of semi-empirical pre-main-sequence model isochrones using the tau^2 maximum ...
C. Bell +3 more
semanticscholar +1 more source
A pilot Rb-Sr dating of the Suomusjärvi ultramylonite: evidence for major post-Svecofennian deformation in SW Finland [PDF]
Bulletin of the Geological Society of Finland, 1991 The Suomusjärvi shear zone in the West Uusimaa area in the Proterozoic Svecofennides of SW Finland belongs to a group of late, post-peak metamorphic structures comprising vertical shear zones and folds with vertical fold axes.
M. Ploegsma
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Three Paleoproterozoic A-type granite intrusions and associated dykes from Kainuu, East Finland [PDF]
Bulletin of the Geological Society of Finland, 2010 Mafic and felsic intrusive rocks aged 2.5-2.4 Ga have been observed over a large area in eastern and northern Finland, as well as in adjacent northwestern Russia. We describe three granite intrusions and associated dykes from Kainuu, Finland, that belong
P. Mikkola +3 more
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