Metasequoia preserved in the Clarkia flora of northern Idaho, along with volcanic ash preserved in the same Miocene lake sequence. We are applying high-precision geochronology and innovations in ...

A branch of geology and earth sciences, stratigraphy is a field of study that deals with the arrangement and succession of strata (layers) in the Earth. Additionally, it involves the origin, ...

Micropaleontology is the branch of paleontology that investigates fossils of microscopic organisms, typically in the size range of about 1 µm to 1 mm, using optical and electron microscopy, imaging, ...

This is a well-written important paper on the recovery of fauna and flora following the end-Permian extinction event in several continental sites in northern China. The convincing conclusion, a rapid ...

Professor, Department of Earth, Environmental and Planetary Sciences, College of Arts and Sciences Dr. Croft uses a variety of approaches to study evolution and adaptation in extinct mammals, ...

The course includes 7,5 credits at the undergraduate leve and i part of a Bachelor's degree in Earth Sciences. The course is offered as an elective course subject to availability. For admission to the ...

Chronostratigraphy is the subfield of geology that studies the relative age of rock strata and that aims at producing a hierarchical classification of (global) divisions of the historical time-rock ...

Dr. Darin Croft studies the evolution of mammals over geologic time using living mammals and the fossil record. His research focuses on the mammals of South America, a continent with a rich fossil ...

From the peak of Mount Everest to the depths of the Mariana Trench, the evidence of human activity is unmissable — and possibly indelible. Yet, a committee of 18 scientists have voted down a proposal ...

ABSTRACT: Abundant porphyritic granites, including Grt-bearing and Bt-bearing porphyritic granites, and porphyritic potash-feldspar granite (trondhjemite-granitic composition) are widely distributed ...

Magnetic methods are important for assigning timescales to sedimentary sequences. Magnetostratigraphy and correlation to the Geological Polarity Time Scale (GPTS) constitute a standard dating tool in ...