Active Research Projects

 

Ma RioGrande reduced

PI: Dr. Lin Ma

 

Current Students:

 

A multi-tracer (U, S, B, and Sr) approach to fingerprint and quantify anthropogenic salinity sources in the semi-arid Rio Grande watershed

NSF funded project to revisit an important salinity issue in the semi-arid portion of the lower Rio Grande watershed. The goals of this project are: 1) to fingerprint and quantify salinity sources using emerging isotopic (uranium), traditional isotopic (boron, sulfur, strontium), and elemental (major dissolved ions) tracers and to understand impacts related to human activities; and 2) to understand the controlling factors on uranium and sulfur isotope variations in natural streams in the Jemez River Basin Critical Zone Observatory. Four students presently working on the project, opportunities for additional studies are available.

Ma Guadeloup reduced2

PI: Dr. Lin Ma

 

Current Students:

Quantifying weathering rind formation rates using U-series isotopes along steep gradients of precipitation, bedrock ages and topography in Guadeloupe

NSF funded project to combine a novel U-series isotopic technique with bulk chemical, petrographic, and electron microprobe analyses to quantify formation rates of weathering rinds on the tropical volcanic Basse-Terre Island of French Guadeloupe. Four students presently working on the project, opportunities for additional studies are available.