Check out Greg’s paper on brGDGT temperature reconstructions during Marine Isotope Stages MIS 31-33 at Lake El’gygytgyn published in EPSL.
Going to NE GSA 2016? Please consider submitting an abstract to session T22: Organic Geochemistry in the Geosciences. We particularly welcome abstracts from students and postdocs!
Description: Organic geochemical techniques are widely utilized in the geosciences to investigate outstanding questions in a variety of disciplines including biogeochemistry, paleoclimatology, paleoceanography, paleolimnology, hydrogeology, petroleum geochemistry, archaeology, geomicrobiology, and forensic science. This session welcomes all studies using organic geochemical or compound-specific isotopic techniques. Studies focusing on method and proxy development are also welcome.
Marcel van der Meer (Royal NIOZ) and Isla Castañeda (UMass) are co-chairing the Paleoclimatology and Archaeology session of the Joint European Stable Isotope Users Meeting (JESIUM 2016) held in the beautiful city of Ghent, Belgium, in September 2016. The call for abstracts opens on December 1st 2015 with a deadline of February 29th 2016. For more information check out the JESIUM 2016 website (http://www.jesium2016.eu/index.html). We are looking forward to reading your abstracts and hope to see you in September in Ghent!
Our newest instrument, a GERSTEL Preparative Fraction Collector (PFC) coupled to an Agilent 7890A GC-FID is now installed and running! The The GERSTEL PFC collects compounds after separation by GC. We plan to use this instrument to isolate compounds such as plant leaf waxes for compound-specific radiocarbon dating.
It all started when the Summer Salad Pie recipe made its rounds on social media a while ago… See recipe #1 here:
At our annual lab holiday party where joke gifts are exchanged, one of the “gifts” contained all of the necessary ingredients to make Summer Salad Pie along with a copy of the recipe. It contained lemon jello, tuna salad, olives, tomato sauce, onion and Tabasco sauce, among other ingredients. PhD student Dan Miller was the recipient of this wonderful gift. Today at our end of the semester lab picnic, Dan showed off his cooking skills & brought in a freshly baked summer salad pie. Its taste was described as “an explosion of flavors, and not in a good way”.
Several members of the UMass Biogeochem lab just returned from a fantastic trip to the Netherlands to attend the GDGT 2014 workshop at NIOZ. In addition to a great conference, we enjoyed a private tour of the organic geochemistry and nanoSIMS laboratories at Utrecht University, which were very impressive!
Going to the NE GSA 2014 meeting in Lancaster, PA? Check out the following presentations by the UMass Biogeochem Lab:
A 3.6 Ma Temperature Record from Lake El’gygytgyn, Russia based on Organic Biomarkers by Helen Habicht et al., Session No. 45, Booth# 57, Monday, 24 March 2014: 8:00 AM-12:00 PM.
Reconstructing Lake Pliocene Environmental Change at Lake El’gygytgyn, Arctic Northeast Russia by Ben Keisling et al., Session No. 45, Booth# 58, Monday, 24 March 2014: 8:00 AM-12:00 PM.
Confirmation of the use of FTIR spectroscopy to determine biogenic silica content of Arctic lake sediments: a powerful tool for high-resolution paleoclimate reconstructions by Greg de Wet, Session No. 5, 10:40 AM.
Paleotemperature Reconstructions from Lake El’gygytgyn (Far East Russia) based on Branched GDGTs by Isla Castañeda et al., Session No. 5, Sunday, 23 March 2014: 10:00 AM.
Welcome to the Biogeochemistry Laboratory at the University of Massachusetts Amherst, Department of Geosciences!
Current research in the Biogeochemistry Laboratory spans a number of disciplines and includes projects aimed at understanding the physical and biochemical composition of depositional and diagenetic environments, projects addressing fundamental questions of carbon cycling over large scales of time and space, projects addressing outstanding questions in paleoclimate and paleoceanography, and projects focusing on the development of organic geochemical proxies for paleoenvironmental reconstructions. To learn more about current research click here.
Major research equipment includes gas chromatographs (GC), a GC-mass spectrometer (GC-MS), a GC-isotope ratio monitoring mass spectrometer (GC-irMS) and a high performance liquid chromatograph -mass spectrometer (HPLC-MS). To learn more about the instrumentation in the Biogeochemistry laboratory click here.