Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
To better constrain the timing of panda's dietary shift from omnivorous to bamboo-exclusive herbivores, this study analyzed stable isotopes of carbon and oxygen in tooth enamel samples from two pygmy pandas from Yanliang Cave (early...
The major elements, trace elements, and isotopic composition of clinopyroxene and garnet fractions from mantle xenoliths from Colorado Plateau area were analyzed in this study to examine the sources of the xenoliths and their role in...
Mercury Isotopic Composition of Fish, Including Gag Grouper (Mycteroperca microlepis) and Red Snapper (Lutjanus campechanus) as Constraints of Mercury Cycling in the Northern Gulf of Mexico
Mercury is a naturally occurring, pervasive element in the environment, with many chemical forms. Toxicology, environmental cycling and retention, and production of mercury by industrial processes and natural and manufactured emissions...
International Ocean Discovery Program (IODP) Expedition 355 drilled two sites (U1456 and U1457) in Laxmi Basin, located in the eastern Arabian Sea. The primary objective of Expedition 355 is to better understand the impact that the...
The southeastern Blue Ridge hosts a suite of metamorphic rock units that provide insight to the Neoproterozoic to Paleozoic tectonic influences that impacted the Laurentian continent. The Ashland-Wedowee-Emuckfaw belt of the southernmost...
Oceanic core complexes (OCCs) are the uplifted and rotated footwalls of detachment faults formed at areas of slow spreading on mid-ocean ridges. Detachment faults initiate close to the spreading axis, and because it is easier to continue...
Panamá arc activity has been divided into three episodes, the Late Cretaceous to Eocene episode, the Miocene episode, and the Pliocene to recent adakite suite. Rocks from the oldest episode are dominantly hornblende bearing, contain a...
The Mulberry Rock recess exposes four different lithotectonic metamorphic units; these lithotectonic units were metamorphosed before the thrusting that occurred due to the Alleghanian orogeny. The lithotectonic units were divided into 1....
This thesis is focused on two aspects: one is to obtain high precision measurement of rhenium isotope composition of iron meteorites; the other is to discuss what processes cause systematic isotopic differences in Re between IVB irons...
The timing and mechanisms responsible for the expansion of C4 grasses have been a topic of considerable debate over the last two decades. Although abundant evidence indicates that there was a worldwide, rapid increase in C4 ecosystems ...
The Panamanian Isthmus presents an ideal opportunity to study arc magmatism, arc-hotspot interaction, and the effects of the South America-Panama collision. These effects include changing mantle wedge compositions and localized tectonic...
This project seeks to determine how the opening of the Red Sea rift was influenced by pre-existing tectonic features and to place constraints on the structural evolution of the western Saudi Arabia margin. In detail, we investigate...
IODP Expedition 334 drilled west of the Costa Rican coast just offshore of the Osa Peninsula with Hole U1381A being the focus for this study. The preservation of the calcareous nannofossils at this hole ranges from moderate to good, ...
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.