McGregor 2012 Gravity Core Geochemistry at the Kronebreen Glacier, Svalbard, Norway: Quantifying Climate Flux in a Glacimarine Setting

• Format: Dataset
• Language: unknown
• Published: Arctic Data Center 2013
• Subjects: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENTS; EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE; EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIER MASS BALANCE/ICE SHEET MASS BALANCE; EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > LAKE LEVELS; EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > SEDIMENTS; EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > SEDIMENTS; EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > VARVE DEPOSITS; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > DEGRADATION; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENT TRANSPORT; EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER MASS BALANCE/ICE SHEET MASS BALANCE; EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENT TRANSPORT; EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > TURBIDITY; EARTH SCIENCE > LAND SURFACE > LAND TEMPERATURE > LAND SURFACE TEMPERATURE; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > ENTRAINMENT; EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GLACIERS/ICE SHEETS > GLACIERS; EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIERS; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENTATION; EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > SOIL TEMPERATURE; EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > PERIGLACIAL PROCESSES; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SUSPENDED SOLIDS; IN SITU/LABORATORY INSTRUMENTS > SAMPLERS > GRABBERS/TRAPS/COLLECTORS > SEDIMENT TRAPS; IN SITU/LABORATORY INSTRUMENTS > CORERS > SEDIMENT CORERS; IN SITU/LABORATORY INSTRUMENTS > CONDUCTIVITY SENSORS > CONDUCTIVITY METERS; EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS; EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PROFILERS/SOUNDERS > TEMPERATURE PROFILERS; IN SITU/LABORATORY INSTRUMENTS > RECORDERS/LOGGERS > TEMPERATURE LOGGERS; IN SITU/LABORATORY INSTRUMENTS > GAUGES > STREAM GAUGES; EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > POSITIONING/NAVIGATION > GPS > GPS > GLOBAL POSITIONING SYSTEM; EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > ACOUSTIC SOUNDERS > ECHO SOUNDERS; IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES; IN SITU/LABORATORY INSTRUMENTS > CORERS > CORING DEVICES; IN SITU/LABORATORY INSTRUMENTS > PROBES > STEEL MEASURING TAPE; IN SITU/LABORATORY INSTRUMENTS > CURRENT/WIND METERS > CURRENT METERS; MANNED FIELD STATION; HOURLY TO DAILY; DAILY TO WEEKLY; ANNUAL; 1 MINUTE TO 1 HOUR; MONTHLY TO ANNUAL; WEEKLY TO MONTHLY; Antarctic; Arctic; Kongsvegen; Kronebreen; Norway; Svalbard; Antarc*; glacier; Ice Sheet; Kongsfjord*; Kongsfjorden; North Atlantic; Tidewater
• Online Access: https://search.dataone.org/view/urn:uuid:ddc2f013-2d5e-463c-9364-a764d7b51365

Abstract: During the present period of significant climate flux, scientists are attempting to understand and constrain the way in which Earth responds to these changes, as well as what these changes mean for life on the planet. The polar regions (the Arctic and Antarctic) are particularly sensitive to climatic perturbations, and they house extensive evidence of the impact that warming has had in the past, from changing ocean chemistries to the relationship between glacial retreat and fluctuations in sea level. As part of an NSF-supported Research Experience for Undergraduates, a group of students traveled to Ny-Alesund, Svalbard, Norway in the summer of 2011 to conduct individual research projects relating to sedimentology and climate studies. Svalbard is an archipelago in the North Atlantic Ocean with a variety of terrains that makes it conducive to studying different aspects of the Holocene geologic record. Sediments throughout the archipelago capture Holocene and modern proxies for past climate fluctuation. This summer’s project was based in Kongsfjorden, a northwest-trending fjord with two actively retreating tidewater glaciers (Kronebreen and Kongsvegen) at its head. Rapid sedimentation rates in Kongsfjorden during glacial retreat have resulted in a high-resolution record of the past few decades. This individual research project (as part of an ongoing senior thesis) seeks to analyze sediment-core geochemistry from the sediments on the floor of Kongsfjorden in a chronostratigraphic framework, using a variety of analytical techniques. This poster presents a multidisciplinary application of X-ray fluorescence, total organic content, Cs-137 and Pb-210 radioisotopic dating, and other methods of sediment core analysis to infer paleoclimatic states.