Current graduate students
Sam Beal, PhD Candidate (expected graduation 2014), co-advised with Brian Jackson and Erich Osterberg
Sam is conducting research in Southern Peru using lake sediments to investigate modern and historical mercury pollution in Peru, as well as to understand natural changes in mercury cycling during the Holocene. Sam is also examining mercury and heavy metal deposition in North America due to the Trans-Pacific transport of Asian pollution by analyzing an ice core from Mt. Logan (Western Canada) and analyzing lake sediment cores. Photo from the Peru 2011 field season, Sam is on the right.
See Sam’s personal website here.
Margaret Jackson, PhD Student (expected graduation 2018)
Maggie is conducting research in the Rwenzori Mountains of Uganda. She will use 10Be surface exposure dating to develop a glacial chronology of these mountains and ultimately compare these chronologies with climate records elsewhere in East Africa and as well as other tropical regions.
Laura Levy, PhD Candidate (expected graduation 2014)
Laura is conducting research on late-glacial and Holocene extents of local glaciers in the Scoresby Sund region of central East Greenland, and the Holocene extents of the Greenland Ice Sheet margin in Kangerlussuaq, West Greenland. To constrain the timing of the ice extents, she is using 10Be exposure dating and lake sediment core chronologies.
See Laura’s personal website here.
Justin Stroup, PhD Candidate (expected graduation 2014)
Justin is conducting research on the Holocene fluctuations of Quelccaya Ice Cap in Peru. He is constructing a detailed 10Be chronology of past extents of the Qori Kalis glacier, the largest outlet of Quelccaya which will be compared to the Quelccaya Ice core record to provide information about climate conditions during the last millennium. Justin is also using changes in sedimentation in a glacially fed lake to determine a near continuous record of past Quelccaya extents during Holocene time.
See Justin’s personal website here.
Jennifer Howley, Cosmogenic Nuclide Laboratory Manager
Jennifer has been the manager of the Cosmo Lab since early 2009. Her main priorities are to process samples for 10Be surface exposure dating samples for various research projects, train graduate and undergraduate students in the laboratory procedures, and keep the lab equipped and functioning for all people using the facilities. Jennifer also works part-time as a lab tech for Prof. Erich Osterberg’s research group.
Former graduate students
Margaret Baber, MS completed Winter 2013
Maggie’s research involved determining whether 10Be exposure dating was reliable in dating moraines ages in the Rwenzori Mountains of East Africa. Once she had established that 10Be was possible in the region, she used this method to establish a chronology of glacial fluctuations during late-glacial and early Holocene time.
Matthew Bigl, MS completed Summer 2013
Matt conducted research on the drainage of Glacial Lake Hitchcock, a glacial lake from the Laurentide Ice Sheet that formed at the end of the Last Glacial Period. He analyzed the varve chronologies of several lake sediment cores taken from modern ponds located within the boundaries of Glacial Lake Hitchcock, and with the varve chronologies he modeled the timing of lake levels and drainage.
Lee Corbett, PhD Candidate
Lee investigated Holocene climate change in the Thule region of Northwest Greenland, with a focus on glacial advances and recessions of the local ice caps and ice sheet margin. This research involved lake sediment core chronologies and 10Be surface exposure dating to determine the timing of glacial fluctuations. The timing of the glacial fluctuations will be compared to stable isotope records of local ice cores and precipitation records.
Former undergraduate students
Sarah Hammer, Dartmouth, Dartmouth ’14, Women in Science Program
(Co-advised with Laura Levy)
Sarah developed climate proxy records using lake sediment cores from east Greenland.
Amanda Duchesne, Dartmouth ’13, Senior Honors Thesis
(Co-advised with Ed Meyer)
Amanda used ODP sediment cores from offshore Antarctic to investigate the past history of the Antarctic Ice Sheet. This project began as a Lamont-Doherty Earth Observatory Summer Internship with Sidney Hemming and Trevor Williams.
Ellen Roy, Dartmouth ’13, Senior Honors Thesis
(Co-advised with Yarrow Axford)
Ellen developed a chironomid record from recent lake sediments in northwest Greenland and used 210Pb dating to determine a chronology of these sediments.
Hannah Baranes, Dartmouth ’12, Senior Honors Thesis
Hannah determined the age of estimated-Last Glacial Maximum moraines of Quelccaya Ice Cap in Peru using 10Be surface exposure dating. Hannah is currently a graduate student at University of Massachusetts, Amherst. The photo is from the Peru 2011 field season, Hannah is on the right.
Laura Reynolds, Dartmouth ’11, Senior Honors Thesis
Laura developed pollen records from sediment cores from a local pond, Occom Pond. Laura is currently a graduate student at UC Santa Barbara. Photo with Laura (second from right) is from the Friends of the Pleistocene trip to the Hanover-Claremont area in 2010 (photo credit: W. Thompson).
Andrew Smith, Dartmouth ’10, Senior Honors Thesis
Andrew developed records of late glacial and Holocene environmental conditions from sediments from a local pond, Occom Pond. He also examined varved sediments in the Occom Pond cores to understand the history of Glacial Lake Hitchcock in the Upper Valley. The photo shows Andrew explaining the cores at the 2010 Friends of the Pleistocene meeting. He is currently working at Exxon Mobile.