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PEARLPaleoecologicalEnvironmentalAssessment andResearchLaboratory |
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PEARLPaleoecologicalEnvironmentalAssessment andResearchLaboratory |
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Image of Great Slave Lake taken by Copernicus Sentinel-2A satellite in June 2020 showing coring locations, remnants of ice cover, and suspended sediment discharged into the West Basin from the Slave River.
Credit: European Union, Copernicus Sentinel-2A imagery
Image of Great Slave Lake (Sentinel-3-OLCI Sensor imagery) taken on August 2, 2022, showing coring locations in the West Basin.
Credit: European Space Agency, Sentinel Hub.
Preparing to retrieve the sediment core from a site on Great Slave Lake, March 2014.
Credit: Marlene Evans/Shannon Landels, Environment and Climate Change Canada (ECCC)
Lowering the UWITEC gravity corer through the ice on Great Slave Lake, March 2014.
Credit: Marlene Evans/Shannon Landels, Environment and Climate Change Canada (ECCC)
Using an ice auger to drill a hole through the ice on Great Slave Lake, March 2014. The red tent is set up to provide shelter and to heat water for thawing equipment.
Credit: Marlene Evans/Shannon Landels, Environment and Climate Change Canada (ECCC)
Helicopter transport to a sediment coring site on Great Slave Lake, March 2014.
Credit: Marlene Evans/Shannon Landels, Environment and Climate Change Canada (ECCC)
Photomicrograph of small-celled cyclotelloid diatom (Discostella species) that dominated the 21st century sediment samples of Great Slave Lake.
Credit: K. Rühland, Queen's University
Photomicrograph of a small-celled cyclotelloid diatom (Lindavia species) that dominated the 21st century sediment samples of Great Slave Lake.
Credit: K. Rühland Queen's University
Photomicrograph of a small-celled cyclotelloid diatom (Discostella species) that dominated the 21st century sediment samples of Great Slave Lake.
Credit: K. Rühland, Queen's University
Photomicrograph of a small-celled cyclotelloid diatom (Discostella species) that dominated the 21st century sediment samples of Great Slave Lake.
Credit: K. Rühland, Queen's University
Photomicrograph of Aulacoseira islandica that dominated the pre-2000 diatom records in Great Slave Lake.
Credit: K. Rühland, Queen's University
Photomicrograph of Aulacoseira islandica that dominated the pre-2000 diatom records in Great Slave Lake.
Credit: K. Rühland, Queen's University
Photomicrograph of a Stephanodiscus species that dominated the 21st century sediment samples of Great Slave Lake.
Credit: K. Rühland, Queen's University
Photomicrograph of Stephanodiscus oregonicus that dominated the sediment record of Great Slave Lake prior to the 21st century.
Credit: K. Rühland, Queen's University
A subfossil scale of a chrysophyte alga (Mallomonas pseudocoronata). This species became more common in the 21st century sediment samples from Great Slave Lake, with warming.
Credit: K. Rühland, Queen's University
A subfossil scale of a chrysophyte alga (Mallomonas pseudocoronata). This species became more common in the 21st century sediment samples from Great Slave Lake, with warming.
Credit: K. Rühland, Queen's University
Frustule of Aulacoseira islandica, a large-celled, chain-forming diatom that dominated the pre-2000 CE Great Slave Lake sediment records.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Frustule of Aulacoseira islandica, a large-celled, chain-forming diatom that dominated the pre-2000 CE Great Slave Lake sediment records.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Frustule of Aulacoseira islandica, a large-celled, chain-forming diatom that dominated the pre-2000 CE Great Slave Lake sediment records.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Aulacoseira subarctica, a heavily silicified, chain-forming diatom that was common in the pre-2000 CE Great Slave Lake sediment records.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Aulacoseira subarctica, a heavily silicified, chain-forming diatom that was common in the pre-2000 CE Great Slave Lake sediment records.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Discostella pseudostelligera (internal view), a small-celled cyclotelloid diatom that dominated the 21st century sediment samples of Great Slave Lake. One central fultoportula present.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Discostella pseudostelligera (internal view), a small-celled cyclotelloid diatom that dominated the 21st century sediment samples of Great Slave Lake.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Discostella pseudostelligera (internal view), a small-celled cyclotelloid diatom that dominated the 21st century sediment samples of Great Slave Lake.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Lindavia intermedia (internal view), a larger-celled cyclotelloid diatom more common in the pre-2000 CE sediment samples of Great Slave Lake. Many central fultoportula present.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Lindavia intermedia (internal view), a larger-celled cyclotelloid diatom more common in the pre-2000 CE sediment samples of Great Slave Lake. Many central fultoportula present.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Stephanodiscus oregonicus (external view), a relatively large-celled diatom that dominated diatom assemblages in the pre-2000 CE sediment samples of Great Slave Lake. No central fultoportula.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Stephanodiscus oregonicus (external view), a relatively large-celled diatom that dominated diatom assemblages in the pre-2000 CE sediment samples of Great Slave Lake. No central fultoportula present.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Stephanodiscus oregonicus (internal view), a relatively large-celled diatom that dominated diatom assemblages in the pre-2000 CE sediment samples of Great Slave Lake. No central fultoportula present.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Stephanodiscus oregonicus (external view), a relatively large-celled diatom that dominated diatom assemblages in the pre-2000 CE sediment samples of Great Slave Lake. No central fultoportula present.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Stephanodiscus medius (internal view), a relatively large-celled diatom that was more common in the pre-2000 CE sediment samples of Great Slave Lake. No central fultoportula.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
Valve of Stephanodiscus medius (internal view), a relatively large-celled diatom that was more common in the pre-2000 CE sediment samples of Great Slave Lake. No central fultoportula.
Scanning electron microscope image Credit: Paul Hamilton, Canadian Museum of Nature. CANA 131034
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