GeMS MCAO observations of the Galactic globular cluster NGC 2808: The absolute age [PDF]
, 2016 Context. Globular clusters are the oldest stellar systems in the Milky Way, and they probe the early epoch of the Galaxy formation. However, the uncertainties on their absolute age are still too large to soundly constrain how the Galactic structures have
G. Iannicola +21 more
core +3 more sources
On the absolute age of the metal-rich globular M71 (NGC 6838). I. Optical photometry [PDF]
, 2015 We investigated the absolute age of the Galactic globular cluster M71 (NGC 6838) using optical ground-based images (u′, g′, r′, i′, z′) collected with the MegaCam camera at the Canada-France-Hawaii Telescope (CFHT).
Prada Moroni, P. G. +17 more
core +3 more sources
‘Absolute’ Age: a Meaningless Term [PDF]
Nature, 1962 I WISH to appeal to my fellow geologists and workers in the rapidly growing subject of geochronology to discontinue a habit or fashion which is both unnecessary and misleading. I refer to the habit of calling radiometric ages ‘absolute’ ages. An age does not become ‘absolute’ by virtue of being expressed in units of time such as a year.
A. Holmes
openaire +2 more sources
Young asteroidal fluid activity revealed by absolute age from apatite in carbonaceous chondrite. [PDF]
Nat Commun, 2016 Chondritic meteorites, consisting of the materials that have formed in the early solar system (ESS), have been affected by late thermal events and fluid activity to various degrees.
Zhang AC +7 more
europepmc +2 more sources
The Absolute Age of NGC 3201 Derived from Detached Eclipsing Binaries and the Hess Diagram [PDF]
Astrophysical JournalWe estimate the absolute age of the globular cluster NGC 3201 using 10,000 sets of theoretical isochrones constructed through Monte Carlo simulation using the Dartmouth Stellar Evolution Program.
Wenxin Du +2 more
core +2 more sources
Tectonics, 2021 During its late‐stage evolution, the European Alpine orogen witnessed a northwest‐directed propagation of its deformation front along an evaporitic basal décollement into the foreland.
N. Looser +5 more
semanticscholar +1 more source
1.90-1.88 Ga arc and back-arc basin in the Orijärvi area, SW Finland [PDF]
Bulletin of the Geological Society of Finland, 2002 The Orijärvi area within the Uusimaa Belt is a key area in resolving the stratigraphy and tectonic setting of the Southern Svecofennian Arc Complex in southern Finland.
M. Väisänen, I. Mänttäri
doaj +1 more source
Geochronology of the Suomenniemi rapakivi granite complex revisited: Implications of point-specific errors on zircon U-Pb and refined λ87 on whole-rock Rb-Sr [PDF]
Bulletin of the Geological Society of Finland, 2015 Multi-grain isotope dilution and secondary ion microprobe zircon U-Pb as well as wholerock Rb-Sr isotope dilution data on the late Paleoproterozoic Suomenniemi rapakivi granite complex (exposed on the northern flank of the Wiborg batholith in ...
O.T. Rämö, I. Mänttäri
doaj +1 more source
American journal of hematology/oncology, 2023 We examined the individual prognostic contribution of absolute neutrophil (ANC), lymphocyte (ALC), and monocyte (AMC) counts, on overall (OS), leukemia‐free (LFS), and myelofibrosis‐free (MFFS) survival in essential thrombocythemia (ET).
A. Tefferi +13 more
semanticscholar +1 more source
Pre-1.91 Ga deformation and metamorphism in the Palaeoproterozoic Vammala Migmatite Belt, southern Finland, and implications for Svecofennian tectonics [PDF]
Bulletin of the Geological Society of Finland, 2004 A metamorphic event in the Vammala Migmatite Belt (VMB) at ~1.92 Ga, revealed by SHRIMP U-Pb analyses of both zircon overgrowths and monazite, is interpreted as post-depositional and is correlated with the development of the early high-grade schistosity.
R.W.R. Rutland +2 more
doaj +1 more source