Earth Evolution

Matthew Jackson

Professor Jackson uses the isotopic and chemical composition of lavas erupted at plume-fed hotspot volcanoes to gain insight into the make-up of the Earth’s deep interior. In particular, he is interested in understanding the origins (recycling of subducted material, metasomatism, etc) and length scales (hemispheric to micron-scale) of heterogeneities in the mantle. He employs innovative in situ techniques to get at the composition of lavas, phenocrysts and the melt inclusions they host.

Geomorphic-Geodynamic Coupling at the Orogen Scale

One of the most provocative - yet largely untested - recent hypotheses concerning orogenic evolution is that regional variations in climate strongly influence spatial variations in the style and magnitude of deformation across an actively deforming orogen. Recent progress in quantifying rates of both tectonic and geomorphic processes and in modeling surface and lithospheric processes sets the stage for an integrated, quantitative, field- and model-based investigation of the interactions and feedbacks between geomorphic, climatic, and tectonic processes.

Snow Hydrology Research Group

The Snow Hydrology Research Group is part of the Donald Bren School of Environmental Science and Management at the University of California, Santa Barbara. It is also a member of the ESIP Federation (Earth Science Information Partners). The primary research focus of this group is NASA's REASoN (Research, Education and Applications Solutions Network) investigation called "Multi-Resolution Snow Products for the Hydrologic Sciences." The group also works on problems of snow metamorphism, snow-climate interactions, and snowmelt runoff.

Biogeography Lab

Since 1991 the Biogeography Lab has conducted research on the ecology, distribution and conservation of species and ecosystems using field studies, geographic information systems and remote sensing.
Through our research we help planners and resource managers protect, manage and restore productive and diverse ecosystems in California, the U.S. and internationally.

Matthew Rioux

I use high-precision ID-TIMS U-Pb geochronology, radiogenic isotope tracers and geochemistry to study magmatic and tectonic processes. My current research projects include: 1. the tectonic development of the Oman-UAE ophiolite; 2. timescales of magmatism and crustal accretion at modern mid-ocean ridges; and 3. the link between plutonism and volcanism in the Aleutian arc.  

Leigh Anne Riedman

I study the most interesting billion years of life's history- the Neoproterozoic and Mesoproterozoic Eras (~1600 to 540 million years ago). This is when eukaryotes (cells with nuclei) became more diverse and abundant and I want to understand more about how that happened and why it happened when it did. During this time there were also major changes in the chemistry of Earth's atmosphere and oceans and there were at least two global glaciations. With my research I am working to understand life's role in that changing world.

Christopher Sorlien

Research interests:

  • Modeling of relations between folding and faulting
  • Development of tectonic models
  • Paleo-climate, Ross Sea and Santa Barbara basin
  • Seismic processing and interpretation, California Borderland (offshore), Ross Sea (Antarctica), Marmara Sea, Turkey.
  • Training of students in seismic reflection methods.
  • 3D visualization of structure using industry software.
  • Coring for paleo-climate


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