The paleoenvironmental significance of trace fossils in Devonian sediments (Taylor Group), Darwin Mountains to the Dry Valleys, southern Victoria
Summary A review of trace fossils in the Taylor Group from the Britannia Range to the MacKay Glacier indicates that they varied significantly both spatially and temporarily within the Devonian basin. New studies in the south provide a better understanding of ichnofaunas in the Junction Sandstone (57...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.541.6637 2023-05-15T16:00:07+02:00 The paleoenvironmental significance of trace fossils in Devonian sediments (Taylor Group), Darwin Mountains to the Dry Valleys, southern Victoria M. A. Bradshaw F. J. Harmsen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.6637 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea133.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.6637 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea133.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea133.pdf text ftciteseerx 2016-01-08T11:05:42Z Summary A review of trace fossils in the Taylor Group from the Britannia Range to the MacKay Glacier indicates that they varied significantly both spatially and temporarily within the Devonian basin. New studies in the south provide a better understanding of ichnofaunas in the Junction Sandstone (570m) and Hatherton Sandstone (450m), with new information on very large burrows in the well-dated Aztec Siltstone. The burrow Heimdallia chatwini occurs in dense populations only in the northern part of the basin (Dry Valleys), but are not found above the Heimdall Erosion Surface. This surface is followed by thick horizons of dense Skolithos linearis burrows that indicate a change of environment. The Skolithos zone can be traced into the southern part of the basin (Darwin Glacier region) beyond the extent of the erosion surface. The Skolithos burrows suggest that the Devonian basin was subjected to a widespread marine incursion sometime during the Early to Middle Devonian. Text Darwin Glacier Unknown Britannia ENVELOPE(-62.681,-62.681,-64.718,-64.718) Britannia Range ENVELOPE(158.000,158.000,-80.000,-80.000) Burrows ENVELOPE(163.650,163.650,-74.300,-74.300) Darwin Glacier ENVELOPE(159.000,159.000,-79.883,-79.883) Darwin Mountains ENVELOPE(156.250,156.250,-79.850,-79.850) Mackay ENVELOPE(168.517,168.517,-77.700,-77.700) Mackay Glacier ENVELOPE(162.000,162.000,-76.967,-76.967) |
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Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Summary A review of trace fossils in the Taylor Group from the Britannia Range to the MacKay Glacier indicates that they varied significantly both spatially and temporarily within the Devonian basin. New studies in the south provide a better understanding of ichnofaunas in the Junction Sandstone (570m) and Hatherton Sandstone (450m), with new information on very large burrows in the well-dated Aztec Siltstone. The burrow Heimdallia chatwini occurs in dense populations only in the northern part of the basin (Dry Valleys), but are not found above the Heimdall Erosion Surface. This surface is followed by thick horizons of dense Skolithos linearis burrows that indicate a change of environment. The Skolithos zone can be traced into the southern part of the basin (Darwin Glacier region) beyond the extent of the erosion surface. The Skolithos burrows suggest that the Devonian basin was subjected to a widespread marine incursion sometime during the Early to Middle Devonian. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
M. A. Bradshaw F. J. Harmsen |
spellingShingle |
M. A. Bradshaw F. J. Harmsen The paleoenvironmental significance of trace fossils in Devonian sediments (Taylor Group), Darwin Mountains to the Dry Valleys, southern Victoria |
author_facet |
M. A. Bradshaw F. J. Harmsen |
author_sort |
M. A. Bradshaw |
title |
The paleoenvironmental significance of trace fossils in Devonian sediments (Taylor Group), Darwin Mountains to the Dry Valleys, southern Victoria |
title_short |
The paleoenvironmental significance of trace fossils in Devonian sediments (Taylor Group), Darwin Mountains to the Dry Valleys, southern Victoria |
title_full |
The paleoenvironmental significance of trace fossils in Devonian sediments (Taylor Group), Darwin Mountains to the Dry Valleys, southern Victoria |
title_fullStr |
The paleoenvironmental significance of trace fossils in Devonian sediments (Taylor Group), Darwin Mountains to the Dry Valleys, southern Victoria |
title_full_unstemmed |
The paleoenvironmental significance of trace fossils in Devonian sediments (Taylor Group), Darwin Mountains to the Dry Valleys, southern Victoria |
title_sort |
paleoenvironmental significance of trace fossils in devonian sediments (taylor group), darwin mountains to the dry valleys, southern victoria |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.6637 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea133.pdf |
long_lat |
ENVELOPE(-62.681,-62.681,-64.718,-64.718) ENVELOPE(158.000,158.000,-80.000,-80.000) ENVELOPE(163.650,163.650,-74.300,-74.300) ENVELOPE(159.000,159.000,-79.883,-79.883) ENVELOPE(156.250,156.250,-79.850,-79.850) ENVELOPE(168.517,168.517,-77.700,-77.700) ENVELOPE(162.000,162.000,-76.967,-76.967) |
geographic |
Britannia Britannia Range Burrows Darwin Glacier Darwin Mountains Mackay Mackay Glacier |
geographic_facet |
Britannia Britannia Range Burrows Darwin Glacier Darwin Mountains Mackay Mackay Glacier |
genre |
Darwin Glacier |
genre_facet |
Darwin Glacier |
op_source |
http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea133.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.541.6637 http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea133.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766395992187338752 |