Terra Nova
SCOPUS (1989-2025)SCIE-ISI
1365-3121
0954-4879
Anh Quốc
Cơ quản chủ quản: Wiley-Blackwell Publishing Ltd , WILEY
Lĩnh vực:
Geology
Phân tích ảnh hưởng
Các bài báo tiêu biểu
The snowball Earth hypothesis: testing the limits of global change
Tập 14 Số 3 - Trang 129-155 - 2002
The gradual discovery that late Neoproterozoic ice sheets extended to sea level
near the equator poses a palaeoenvironmental conundrum. Was the Earth's orbital
obliquity > 60° (making the tropics colder than the poles) for 4.0 billion years
following the lunar‐forming impact, or did climate cool globally for some reason
to the point at which runaway ice‐albedo feedback created a `snowball' Earth?
...
The Variscan collage and orogeny (480–290 Ma) and the tectonic definition of the Armorica microplate: a review
Tập 13 Số 2 - Trang 122-128 - 2001
The Variscan belt of western Europe is part of a large Palaeozoic mountain
system, 1000 km broad and 8000 km long, which extended from the Caucasus to the
Appalachian and Ouachita mountains of northern America at the end of the
Carboniferous. This system, built between 480 and 250 Ma, resulted from the
diachronic collision of two continents: Laurentia–Baltica to the NW and Gondwana
to the SE. Betw...
The remarkable Re–Os chronometer in molybdenite: how and why it works
Tập 13 Số 6 - Trang 479-486 - 2001
The Re–Os (rhenium–osmium) chronometer applied to molybdenite (MoS2) is now
demonstrated to be remarkably robust, surviving intense deformation and
high‐grade thermal metamorphism. Successful dating of molybdenite is dependent
on proper preparation of the mineral separate and analysis of a critical
quantity of molybdenite, unique to each sample, such that recognized spatial
decoupling of 187Re par...
Subduction and eduction of continental crust: major mechanisms during continent‐continent collision and orogenic extensional collapse, a model based on the south Norwegian Caledonides
Tập 3 Số 3 - Trang 303-310 - 1991
ABSTRACTDuring continental collision in the middle Silurian, the thickness of
the lithosphere under the Caledonides of S. Norway was doubled by subduction of
the western margin of Baltica, including the Western Gneiss Region, under
Laurentia. Crustal rocks of the Baltic plate reached sub‐Moho depths of near 100
km or more as inferred from the presence of coesite in eclogites. Isostatic
calculation...
Age refinement of the Messinian salinity crisis onset in the Mediterranean
Tập 25 Số 4 - Trang 315-322 - 2013
AbstractWe propose a revised age calibration of the Messinian salinity crisis
onset in the Mediterranean at 5.971 Ma based on the recognition of an extra
gypsum cycle in the transitional interval of the Perales section (Sorbas basin,
Spain) and the revision of the magnetostratigraphy of the Monticino section
(Vena del Gesso basin, Italy). This age re‐calibration allows to state more
accurately tha...
Neoproterozoic cap carbonates: a critical appraisal of existing models and the plumeworld hypothesis
Tập 17 Số 4 - Trang 299-310 - 2005
AbstractEvidence for glaciation during the mid‐late Neoproterozoic is widespread
on Earth, reflecting three or more ice ages between 730 Ma and 580 Ma. Of these,
the late Neoproterozoic Marinoan glaciation of approximately 635 Ma stands out
because of its ubiquitous association with a characteristic, microcrystalline
cap dolostone that drapes glacially influenced rock units worldwide. The
Marinoan...
The Cimmerian Orogeny in northern Iran: tectono‐stratigraphic evidence from the foreland
Tập 21 Số 3 - Trang 211-218 - 2009
AbstractFrom the Permian onwards, the Gondwana‐derived Iran Plate drifted
northward to collide with Eurasia in the Late Triassic, thereby closing the
Palaeotethys. This Eo‐Cimmerian Orogeny formed the Cimmeride fold‐and‐thrust
belt. The Upper Triassic–Middle Jurassic Shemshak Group of northern Iran is
commonly regarded as the Cimmerian foreland molasse. However, our
tectono‐stratigraphic analysis ...
Are the oroclines of the Variscan belt related to late Variscan strike‐slip tectonics?
Tập 23 Số 4 - Trang 241-247 - 2011
Terra Nova, 23, 241–247, 2011AbstractEarly Variscan structures and magnetic
anomalies delineate four oroclines along the Variscan belt. The arcs bend the
lithostratigraphic zones of the autochthon and the allochthonous terranes, which
include ophiolites of the Rheic suture and units of Gondwanan derivation
subducted on both sides of the Rheic Ocean. A transcurrent model dominated by
right‐lateral ...
The Valanginian carbon isotope event: a first episode of greenhouse climate conditions during the Cretaceous
Tập 4 Số 3 - Trang 374-384 - 1992
ABSTRACTLower Cretaceous pelagic carbonates outcropping along the Southern Alps
of northern Italy provide a record of Tethyan palaeoceanography as well as of
low frequency fluctuations in the global carbon cycle. The carbonate C‐isotope
stratigraphy established at five selected localities in the Southern Alps allows
an accurate picture to be drawn of the duration and amplitude of the Valanginian
C...
Was Cathaysia part of Proterozoic Laurentia? – new data from Hainan Island, south China
Tập 20 Số 2 - Trang 154-164 - 2008
AbstractWe report here new field and analytical data from Precambrian rocks on
Hainan Island of the Cathaysia Block, south China, and examine its probable
connection to Laurentia. Granitoids and newly discovered felsic volcanic rocks
dated at 1433 ± 6 Ma and 1439 ± 9 Ma (SHRIMP U‐Pb zircon) on Hainan Island are
coeval with, and isotopically similar to the 1500–1350 Ma trans‐continental
granite‐rhy...