Scotia Sea regional tectonic evolution: implications for mantle flow and palaeocirculation

PF Barker - Earth-Science Reviews, 2001 - Elsevier
The Scotia Sea and surrounding Scotia Arc have evolved over the past 40 Ma, by extension
behind an east-migrating subduction zone, at the boundary between the South American …

Tectonic reconstructions for paleobathymetry in Drake Passage

G Eagles, W Jokat - Tectonophysics, 2014 - Elsevier
A minimum-complexity tectonic reconstruction, based on published and new basin opening
models, depicts how the Scotia Sea grew by Cenozoic plate divergence, dismembering a …

Evolution of Cenozoic seaways in the circum-Antarctic region

LA Lawver, LM Gahagan - Palaeogeography, Palaeoclimatology …, 2003 - Elsevier
A complete circum-Antarctic seaway did not open until both the South Tasman Rise cleared
the Oates Land coast of East Antarctica and Drake Passage opened between the southern …

Seismotectonics and relative plate motions in the Scotia Sea region

AM Pelayo, DA Wiens - Journal of Geophysical Research: Solid …, 1989 - Wiley Online Library
Source parameter inversion of P and SH waveforms and amplitudes for 20 shallow
earthquakes using a singular value decomposition technique provides important constraints …

[HTML][HTML] Glaucony authigenesis, maturity and alteration in the Weddell Sea: An indicator of paleoenvironmental conditions before the onset of Antarctic glaciation

A López-Quirós, C Escutia, A Sánchez-Navas… - Scientific reports, 2019 - nature.com
Three types of glaucony grains were identified in the late Eocene (~ 35.5–34.1 Ma)
sediments from Ocean Drilling Program (ODP) Hole 696B in the northwestern Weddell Sea …

New insights into the nature of glauconite

A López-Quirós, A Sánchez-Navas… - … : Journal of Earth …, 2020 - pubs.geoscienceworld.org
Glauconite must be assessed as mica-rich mica-smectite R3 interstratified mineral, with the
pure end-member mica also having intrinsic K-deficient chemical characteristics (K+~ 0.8 …

Small basins in the Scotia Sea: the Eocene Drake passage gateway

G Eagles, R Livermore, P Morris - Earth and Planetary Science Letters, 2006 - Elsevier
After isostatic correction for their sedimentary fill, the depths of two small oceanic basins in
the southern Scotia Sea suggest that both started to open in mid to late Eocene times …

Tectonic evolution of the west Scotia Sea

G Eagles, RA Livermore, JD Fairhead… - Journal of Geophysical …, 2005 - Wiley Online Library
Joint inversion of isochron and flow line data from the flanks of the extinct West Scotia Ridge
spreading center yields five reconstruction rotations for times between the inception of …

Revised tectonic implications for the magnetic anomalies of the western Weddell Sea

ME Ghidella, G Yáñez, JL LaBrecque - Tectonophysics, 2002 - Elsevier
Ten years after the USAC (US–Argentina–Chile) Project, which was the most
comprehensive aeromagnetic effort in the Antarctic Peninsula and surrounding ocean …

Opening history of Powell basin, Antarctic peninsula

G Eagles, RA Livermore - Marine Geology, 2002 - Elsevier
The opening of Powell Basin was part of the regional response to N55° W relative plate
motion of South America away from Antarctica, which led to the formation of Drake Passage …