Ridge collision at convergent margins: implications for Archean and post- Archean crustal growth. Tectonophysics, 161: 307-315.Nelson, E. P. & Forsythe, R.D. 1989. Ridge collision at convergent margins: implications for Archean and post-Archean crustal growth. Tectonophysics 161, 307-15....
magnesite, oxides and carbonatite melt were performed using a JEOL JXA-8530F Plus field emission electron microprobe (EPMA) at the Centre for Advanced Microscopy, the Australian National University and the Oxford INCA 250 X-MAX 20 energy-dispersive X-ray spectrometer at Macquarie University. The an...
We document a complete cycle of deep burial and exhumation in metamorphosed volcano-sedimentary rocks of the Waroonga Greenstone Belt (WGB) along the Ida Fault, a major tectonic boundary (≥500 km long) within the Yilgarn Craton. The Yilgarn Craton mostly exposes Meso- to Neoarchean granite–...
what type of tectonic boundary are the himalayas in plate tectonics , a convergent boundary , also known as a destructive plate boundary ( because of subduction ) , is an actively deforming region where two ( or more ) tectonic plates or fragments of the lithosphere move toward one a...
The ca. 1.45 Ga reactivation of shear zones in the northern Gawler may reflect transmission of these boundary stresses into the interior of the continent. 6. Conclusions Monazite UePb geochronology from three drill holes in the northern Gawler Craton reveals the presence of a previously ...
The initial temperature field of the continental domain increased linearly from 0 °C at the surface (20 km) to 1344 °C at the lithosphere-asthenosphere boundary (130 km depth). A thermal gradient of 0.5 °C was used for the asthenospheric mantle (>130 km). The left...
The numerical results show that two distinct breakup modes, namely continental interior and edge breakup ("edge" refer to continent above the plate boundary interface), may develop depending on the "maturity" of the convergent margin and the age of the oceanic lithosphere. For a slab age of ~...
(2015). The emergence of the Eoarchaean proto-arc: Evolution of a c. 3700 Ma convergent plate boundary at Isua, southern West Greenland, in Roberts, N.M.W., et al., eds., Continent Formation through Time. Geological Society of London Special Publication, 389, 113-133....
In transition zones, evaporation is high enough to trigger moist convection from boundary layer moisture but is dominated by the variation in soil moisture. This leads to stronger precipitation-soil moisture feedbacks, which are expected to further enhance the drying leading to the onset of drought-...
1). Our studied area, named as the Kembel mélange51,52,53,54, lies close to the north boundary of the ATMC and is clamped in between the North and South regional greenschist-facies units. It was crosscut by the Kembel River as a ~1 km wide N-S across, deeply buried mélange ...