Anthropogenic consumption of fossil fuels releases carbon into the Earth-atmosphere-ocean system at rates unmatched by geologic processes. Yet, some geologic time periods also show evidence of climate forcing related to rapid natural greenhouse gas emissions and can serve as too…
The work presented in this dissertation focuses on the paleoceanography of the Indonesian Seas over the past 25,000 years; a region that plays a critical role in the global atmospheric and oceanic circulation. The modern oceanography of the Indonesian Seas is very complex due to…
The Indo-Pacific Warm Pool is currently the warmest region of the modern ocean, with annual average sea surface temperatures upwards of 28°C. As such, it is the largest single source of heat and moisture to the atmosphere. Climate modeling efforts and paleoceanographic reconstru…
This dissertation aims to reconstruct the volcanic, geologic, and oceanographic evolution in the Andaman Sea and northern Bay of Bengal regions during the last ~9.4 Myrs. The volcanic evolution of the north Sunda Subduction Zone is investigated through geochemical (i.e., major, …
Changes in carbon dioxide concentration and/or ocean circulation are generally invoked to explain both equable early Miocene climates and subsequent rapid East Antarctic ice sheet (EAIS) expansion in the middle Miocene. However, pCO\sb2 trends and absolute magnitudes must be inf…
This dissertation is a collection of five calcareous nannofossil and one stable isotope studies on materials from Ocean Drilling Program (ODP) Legs 183 (Site 1135), 206 (Site 1256), and 207 (Site 1259) that target two important paleoceanographic events: (1) the middle/late Mioce…