Photos
Photographs of our work related to the Camp Century sub-ice sediment core. Use of these is allowed for press coverage as long as they are credited properly. These images are not for commercial use without permission. Drag image to your desktop to download at moderate resolution. To to download the highest possible resolution from our Google Photos library (if available), click below each caption on "high resolution image" or to see the entire library, click here.
View of the drilling set up in Trench 12 at Camp Century in 1961. Credit: Photograph by David Atwood, U.S. Army-ERDC-CRREL, courtesy of AIP Emilio Segrè Visual Archives.
J. Kasl and D. Garfield viewing a retrieved core at Camp Century in 1966. Credit: Photograph by David Atwood, U.S. Army-ERDC-CRREL, courtesy of AIP Emilio Segrè Visual Archives.
Lyle B. Hansen and Chester Langway inspecting the sub-ice core from Camp Century drilling. Credit: Photograph by David Atwood, U.S. Army-ERDC-CRREL, courtesy AIP Emilio Segrè Visual Archives.
Map of the Camp Century trench network. Coring was conducted in trench 12, lower right. Credit: Derived from: Technical report 174 fig. 26, p. 34, Camp Century Evolution of Concept and History of Design Construction and Performance, U.S. Army Materiel Command.
Camp Century sub-ice samples in the ice core facility (Copenhagen). Paul Bierman (r) and Joerg Schaefer (l). Credit: University of Vermont
First Camp Century sub-ice sample processed at the University of Vermont. Credit: Paul Bierman, University of Vermont
Determining color of Camp Century sub-ice sample. Credit: Paul Bierman, University of Vermont
Finding twig in Camp Century sub-ice sample, Leah Williamson (l) and Andrew Christ (r). Credit: Paul Bierman, University of Vermont
Camp Century sub-ice samples comparing original core before cutting and core photographed in 2020. Credit: Andrew, Christ, University of Vermont
Visual log of Camp Century sub-ice sediment core showing sampled intervals and example of upper and lower sediment. Credit: Andrew, Christ, University of Vermont
First twig recovered from the Camp Century sub-ice sample. Credit: Paul Bierman, University of Vermont
Drew Christ cutting Camp Century sub-ice samples in the ice core facility (Copenhagen) under red light. Credit: University of Vermont
Jena Louis Tison cutting Camp Century sub-ice samples in the ice core facility (Copenhagen) under red light. Credit: University of Vermont
Samples arriving in Vermont in coolers from Copenhagen Credit: Bella Bennett, University of Vermont
Camp Century uppermost sample last exposed 416,000 years ago. Credit: Andrew Christ, University of Vermont
Camp Century lower most sample buried for up to 3 million years. Credit: Andrew Christ, University of Vermont
Camp Century sub-ice sample from lower part of the core, glacial till. Credit: Andrew, Christ, University of Vermont
Camp Century sub-ice samples coming to the University of Vermont in 2021. Credit: Bella Bennett, University of Vermont
Pebble isolated from Camp Century sub-ice sample at the University of Vermont in 2021. Credit: Paul Bierman, University of Vermont
Processing melted sample from Camp Century sub-ice sediment to extract pore water. Credit: Paul Bierman, University of Vermont
Juliana Souza (UVM MS candidate) diluting samples of pore water extracted from Camp Century sub ice sediment samples. Credit: Paul Bierman, University of Vermont
Cat Collins (UVM MS candidate) CT scanning Camp Century sub ice sediment samples at CRREL in Hanover, NH. Credit: Andrew, Christ, University of Vermont
Halley Mastro examining fossils from Camp Century sub ice sediment samples at UVM (UVM MS candidate). Credit: Andrew, Christ, University of Vermont
Andrew Christ processing Camp Century sub ice sediment samples. Credit: Paul Bierman, University of Vermont
Cat Collins (UVM MS candidate) reviewing 3D model of Camp Century sub ice sediment sample CT scans. Credit: Andrew Christ, University of Vermont
Cat Collins (UVM MS candidate) Camp Century processes sub ice sediment samples at UVM. Credit: Andrew Christ, University of Vermont
Hawke Woznick (USU MS candidate) processing samples for dating under safelight in the Utah State University Luminescence Lab. Credit: Levi Sim, Utah State University
Processing samples for dating under safelight in the Utah State University Luminescence Lab. Credit: Levi Sim, Utah State University
Analysis of pore water anions at Williams College Environmental Analysis Laboratory. Jay Racella (left) and Juliana Souza (right) Credit: David Dethier, Williams College
Juliana Souza and analysis of pore water anions at Williams College Environmental Analysis Laboratory. Credit: David Dethier, Williams College
(from left to right) Paul Bierman, Nico Perdrial, Cat Collins, and Jody Smith look at SEM analysis of bulk sediment from Camp Century Core at Middlebury College. Credit: Bella Bennett, University of Vermont
Camp Century fossil. Well-preserved Sedge (Carex) seed, sedges are abundant in modern tundra environments. Credit: Halley Mastro, University of Vermont
Camp Century fossil. Moss stem with intact leaves (Bryophyte), mosses are a key part of tundra ecosystems today. Credit: Halley Mastro, University of Vermont
Camp Century fossil. Eight-petal mountain avens (Dryas octopetala) leaf, D. octopetala is currently a circumpolar species common in Arctic tundra environments. Credit: Halley Mastro, University of Vermont
Camp Century fossil. Water flea (Daphnia) ephippium (resting egg pouch). Today, Daphnia are common in freshwater bodies around the world, including the Arctic. Credit: Halley Mastro, University of Vermont
Camp Century fossil. Scanning electron microscope image of Arctic Willow (Salix) twig section. Detailed cellular features are visible that enable identification, including simple intervascular pitting and simple perforation plate. Credit: Halley Mastro, University of Vermont
Camp Century fossil. Scanning electron microscope image of freshwater diatom (single-celled algae), discovered on a fragment of woody tissue. Credit: Halley Mastro, University of Vermont
Camp Century fossil. Scanning electron microscope image of Arctic Willow (Salix) twig cross section. Vascular tissues and diagnostic features like intervascular pitting are visible. Credit: Halley Mastro, University of Vermont
Camp Century fossil. Scanning electron microscope image of Arctic Willow (Salix) twig cross section. Microscopic debris from hundreds of thousands of years within sub-ice sediment is visible. Credit: Halley Mastro, University of Vermont
3D model of Camp Century core sample 1060-C1 made using Bruker CT Vox software. Sample shows fine sediment unconformably atop disturbed sediment beds. Left shows full scan, right shows only denser particles. Credit: Cat Collins, University of Vermont
3D model of Camp Century core sample 1060-C3 made using Bruker CT Vox software. Sample shows deformed normally-graded sediment that fines upward from large pebbles to fine sand that lacks bedforms. Left shows full scan, right shows only denser particles. Credit: Cat Collins, University of Vermont
3D model of Camp Century core sample 1061-D3 made using Bruker CT Vox software. Sample shows ice containing some fine-grained sediment with minor amounts of sand. Left shows full scan, right shows only denser particles. Credit: Cat Collins, University of Vermont
3D model of Camp Century core sample 1061-D3 made using Bruker CT Vox software. Sample shows poorly-sorted, homogenous diamicton containing clasts of varying angularity and lithology in a sandy-mud matrix with no bedforms or laminations. Left shows full scan, right shows only denser particles. Credit: Cat Collins, University of Vermont
The Greenland Ice Sheet. Credit: Josh Brown, University of Vermont
Melting ice on a small Greenland tundra pond. Credit: Josh Brown, University of Vermont
Tundra vegetation on rocky outcrop, Greenland. Credit: Josh Brown, University of Vermont
Small stream flows across Greenland's tundra landscape. Credit: Josh Brown, University of Vermont
Tundra vegetation on rocky outcrop, Greenland. Credit: Josh Brown, University of Vermont
Tundra vegetation on Greenland landscape. Credit: Josh Brown, University of Vermont
Margin of the Greenland ice sheet with moraine, stream and tundra. Credit: Paul Bierman, University of Vermont
Outwash stream with tundra-covered hills, Greenland. Credit: Paul Bierman, University of Vermont
Outwash stream in spring, Greenland. Credit: Paul Bierman, University of Vermont
Sledge with sea ice. Credit: Paul Bierman, University of Vermont
Sea ice in Greenland melting in summer sun. Credit: Paul Bierman, University of Vermont
Icebergs, Greenland. Credit: Paul Bierman, University of Vermont
Meltwater pouring over ice at the edge of the Greenland Ice Sheet near 660 at midnight, Kangerlussuaq. Greenland. Credit: Paul Bierman, University of Vermont
Meltwater pouring over ice at the edge of the Greenland Ice Sheet near 660 at midnight, Kangerlussuaq. Greenland. Credit: Paul Bierman, University of Vermont
Sediment melting out of the Greenland Ice Sheet near 660, Kangerlussuaq. Greenland. Credit: Paul Bierman, University of Vermont
The Russel Glacier ice margin near Kangerlussuaq, Greenland with bedock, till, and tundra along with meltwater streams. Credit: Paul Bierman, University of Vermont