Zobrazeno 1 - 10
of 10
pro vyhledávání: '"J. N. Connelly"'
Publikováno v:
The Astrophysical Journal Letters, Vol 952, Iss 2, p L33 (2023)
We present a U-corrected Pb–Pb age of 4566.19 ± 0.20 Ma (1.11 ± 0.26 Myr after t _0 ) for the moderately volatile element rich, andesitic meteorite Erg Chech 002 (EC002). Our Al–Mg isochron defines a ^26 Al/ ^27 Al initial ratio of (8.65 ± 0.0
Externí odkaz:
https://doaj.org/article/52be4863f39044a38050753ac3433503
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
The high amount of L-type chondrites discovered in Ordovician sediments has previously been linked with the Great Ordovician Biodiversification Event. But here, Lindskoget al. present new zircon ages that date the chondrite dispersion to 468.0±0.3 M
Externí odkaz:
https://doaj.org/article/f0c0ed61691b474abebcc7dc2fd088b6
Autor:
Rachel J. Beane, J. N. Connelly
Publikováno v:
Journal of the Geological Society. 157:811-822
New 40 Ar/ 39 Ar, U–Pb, and Sm–Nd data from 13 metamorphic samples constrain the formation and exhumation of the high-pressure Maksyutov Complex in the southern Uralide orogen. The Maksyutov Complex records the highest-pressure metamorphism in th
Publikováno v:
Canadian Journal of Earth Sciences. 33:216-230
The southeastern Churchill Province (SECP) is a Paleoproterozoic system of orogens that formed during collision of the Nain and Superior cratons with a composite lithotectonic terrane that now forms the medial, metamorphic–plutonic core zone of the
Publikováno v:
Geological Society, London, Special Publications. 112:297-313
Autor:
J. N. Connelly, K. I. Ahall
Publikováno v:
Geological Society, London, Special Publications. 112:261-273
Publikováno v:
Tectonics. 14:202-217
The Grenville Province in western Labrador comprises three lithotectonic terranes, structurally stacked from northwest to southeast, whose geometric relationships evolved over a time interval from the Early Proterozoic to the Grenvillian Orogeny (cir
Autor:
J N, Connelly
Publikováno v:
Science (New York, N.Y.). 327(5964)
Publikováno v:
Geology. 21:1127
In western Labrador, tectonic elements of the parautochthonous belt of the northern Grenville orogen include a regional, mid-crustal, thin-skinned, metamorphic fold-thrust belt structurally overlain by a thick-skinned thrust sheet with a high-pressur