Magmatic and tectonic history of Iceland's western rift zone at Lake Thingvallavatn

New palaeogeographic and lake-level reconstructions of Lake Tanganyika: implications for tectonic, climatic and biological evolution in a rift lake

Palaeogeographic and lake-level reconstructions provide powerful tools for evaluating competing scenarios of biotic, climatic and geological evolution within a lake basin. Here we present new reconstructions for the northern Lake Tanganyika subbasins, based on reflection seismic, core and outcrop data. Reflection seismic radiocarbon method (RSRM) age estimates provide a chronological model for ...

The lithosphere–asthenosphere boundary and the tectonic and magmatic history of the northwestern United States

The lithosphere–asthenosphere boundary and the tectonic and magmatic history of the northwestern United States a r t i c l e i n f o a b s t r a c t Keywords: scattered waves lithosphere lithosphere–asthenosphere boundary mid-lithospheric discontinuity This study explores the properties of the lithosphere–asthenosphere boundary (LAB) and other shallow mantle discontinuities across the diverse g...

Magmatic and Tectonic Evolution of Southern Tibet and the Himalaya

The Himalaya-Tibetan orogen has become the paradigm for continental collision and is central to deciphering continental tectonics. Neogene extension in the orogen is not predicted by plate tectonic theory, and its significance is widely debated. In the Himalaya, north-south extension is restricted to the Southern Tibetan Detachment System (STDS), which juxtaposes the High Himalayan Crystalline ...

Tectonic, Magmatic, Hydrothermal and Biological Segmentation of Mid-Ocean Ridges

Differentiation at the MHCIIα and Cath2 Loci in Sympatric Salvelinus alpinus Resource Morphs in Lake Thingvallavatn

Northern freshwater fish may be suitable for the genetic dissection of ecological traits because they invaded new habitats after the last ice age (∼10.000 years ago). Arctic charr (Salvelinus alpinus) colonizing streams and lakes in Iceland gave rise to multiple populations of small benthic morphotypes, often in sympatry with a pelagic morphotype. Earlier studies have revealed significant, but ...