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Giraffe Pipe

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FIGURE 3 —Valves of  Actinella  morphotype <b>Giraffe</b> 1 from <b>Giraffe</b> <b>Pipe</b> sedi...
in > PALAIOS
Published: 01 March 2009
FIGURE 3 —Valves of Actinella morphotype Giraffe 1 from Giraffe Pipe sediments (A–D, G–H) and the modern species, A. parva , from Lake Judd, Tasmania (E–F). A– B) Internal (A) and external (B) views of whole valves. Note the varying lengths of the raphe slits and their position along the ventral
Image
FIGURE 1 —Location map and the <b>Giraffe</b> <b>Pipe</b> core. A) Location. B) Schematic...
in > PALAIOS
Published: 01 March 2009
FIGURE 1 —Location map and the Giraffe Pipe core. A) Location. B) Schematic stratigraphy. C) Lithostratigraphy and location of observations.
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FIGURE 2 —Fossil  Mallomonas bangladeshica  scales from <b>Giraffe</b> <b>Pipe</b> sedime...
in > PALAIOS
Published: 01 March 2009
FIGURE 2 —Fossil Mallomonas bangladeshica scales from Giraffe Pipe sediments (A, C, E–F) and modern forms from the Paraná River delta, Argentina (B, D). A–B) Whole scales, each with a posterior upturned rim, anterior thickened margin, large anterior depression, surface papillae, and a well
Image
FIGURE 2 —SEM micrographs of  Aulacoseira  from <b>Giraffe</b> <b>Pipe</b> sediments. (A)...
in > PALAIOS
Published: 01 June 2006
FIGURE 2 —SEM micrographs of Aulacoseira from Giraffe Pipe sediments. (A) Diatoms embedded in the matrix of an untreated fractured mudstone surface. (B) A complete cell with concave face and linking spines (top) and spineless terminal valve (bottom). (C–E) Various morphologies of balled
Journal Article
Published: 01 July 2015
Journal of Micropalaeontology (2015) 34 (2): 151-163.
... character for inclusion in Actinella , and this is the primary criterion on which we ascribe the new species from the Giraffe pipe as belonging to Actinella . In our opinion, given the current definitions of both genera, the new species are best classified as Actinella . Although all Actinella...
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FIGURE 1 —Color LM micrographs of diatoms from thin sections of <b>Giraffe</b> Pip...
in > PALAIOS
Published: 01 June 2006
FIGURE 1 —Color LM micrographs of diatoms from thin sections of Giraffe Pipe lacustrine mudstone. Arrows indicate protoplasmic remnants encased within intact frustules. Scale bars=10 μm. Discrete green masses occur at the junction between valve face and mantle (A), clustered near the central lumen
Journal Article
Published: 01 May 2013
Journal of Paleontology (2013) 87 (3): 373-378.
... (collection number ZPAL Pf. 23/A395), here illustrated on Figure 2 . Middle Eocene (Lutetian) lake sediments, Giraffe kimberlite maar, northern Canada, (64°44′ N, 109 ° 45′ W). Highly variable abundances of spicules attributed to potamolepid sponges were observed in the Giraffe Pipe core from...
FIGURES
Journal Article
Journal: Geology
Published: 01 July 2017
Geology (2017) 45 (7): 619-622.
...) and Mark Pagani (1960–2016), who trailblazed much of our thought concerning greenhouse worlds of the past, and Art Sweet (1942–2017), pillar of Canadian palynology and the first to analyze Giraffe pipe pollen. 1 GSA Data Repository item 2017202, detailed methods (Appendix DR1), data tables (Tables...
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Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP446.5
EISBN: 978-1-78620-376-2
..., especially those of mafic and ultramafic magma types, have the same diatreme size range (diameter and depth) as kimberlite pipes and show similar internal volcaniclastic diatreme lithofacies. In addition, these young volcanoes often have a more or less preserved tephra ring consisting of hundreds to perhaps...
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FIGURE 4 —Examples of mummified  Metasequoia glyptostroboides  remains from...
in > PALAIOS
Published: 01 March 2009
FIGURE 4 —Examples of mummified Metasequoia glyptostroboides remains from Giraffe Pipe terrestrial sediments immediately overlying the lacustrine sequence. A) Litter dominated by M. glyptostroboides from a depth of 85 m in the core (62 m equivalent vertical depth; cf. Fig. 1 ). B) Higher
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FIGURE 3 —TEM (A–C, E–H) and SEM (D) micrographs of  Aulacoseira . All scal...
in > PALAIOS
Published: 01 June 2006
FIGURE 3 —TEM (A–C, E–H) and SEM (D) micrographs of Aulacoseira . All scales given on photos. (A, B) Cross-sections through a modern A. granulata mantle revealing velum (v) and two overlapping copulae (c). (C) Identical structures are present in Eocene Aulacoseira from the Giraffe Pipe. (D
Journal Article
Journal: PALAIOS
Published: 01 March 2009
PALAIOS (2009) 24 (3): 192-198.
...FIGURE 3 —Valves of Actinella morphotype Giraffe 1 from Giraffe Pipe sediments (A–D, G–H) and the modern species, A. parva , from Lake Judd, Tasmania (E–F). A– B) Internal (A) and external (B) views of whole valves. Note the varying lengths of the raphe slits and their position along the ventral...
FIGURES | View All (4)
Journal Article
Journal: PALAIOS
Published: 01 June 2006
PALAIOS (2006) 21 (3): 298-304.
...FIGURE 2 —SEM micrographs of Aulacoseira from Giraffe Pipe sediments. (A) Diatoms embedded in the matrix of an untreated fractured mudstone surface. (B) A complete cell with concave face and linking spines (top) and spineless terminal valve (bottom). (C–E) Various morphologies of balled...
FIGURES
Journal Article
Journal: Paleobiology
Published: 25 October 2013
Paleobiology (2013) 40 (1): 91-101.
... was the discovery of three freshwater Stephanodiscaceae— Cyclotella , Discostella , and Puncticulata —from the Giraffe Kimberlite Pipe in the Northwest Territories, Canada ( Wolfe and Siver 2009 ). These fossils were dated to 40 Ma (middle Eocene), shifting the entire biochronology of Thalassiosirales...
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Journal Article
Journal: PALAIOS
Published: 21 December 2018
PALAIOS (2018) 33 (12): 525-534.
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Journal Article
Journal: PALAIOS
Published: 01 January 2010
PALAIOS (2010) 25 (5): 347-355.
... the Early Cretaceous onward (e.g., Siver and Wolfe, 2005a , 2005b ), but the earliest record of fossil chrysophyte scales comes from lacustrine and wetland environments associated with the middle Eocene Giraffe Pipe locality in Canada, a vent lake created by explosive emplacement of a kimberlite body...
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Journal Article
Published: 01 February 2013
Quarterly Journal of Engineering Geology and Hydrogeology (2013) 46 (1): 107-116.
...’). Numerous lakes supported abundant savannah and lake-margin fauna, including antelope, giraffe, elephant, hippopotamus and crocodile. Computer model results suggest that North African rainfall may have increased by 40% during this period ( Prell & Kutzbach 1987 ; Kutzbach & Liu 1997 ). Fig. 4...
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Series: GSA Field Guides
Published: 04 September 2019
DOI: 10.1130/2019.0055(18)
EISBN: 9780813756544
... and fractures often associated with pipe-like vent structures. Selective preservation of petrified wood is often found near these vents. Sedimentary rocks that form the badlands to the north, east, and south of El Golfo de Santa Clara contain a vast resource of interest to vertebrate paleontologists...
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Series: Geological Society, London, Memoirs
Published: 01 January 2008
DOI: 10.1144/M33.6
EISBN: 9781862394087
... and siltstones (the Oltukai Beds, Amboseli Clays and Sinya Beds) overlying basal conglomerates, gravels and sands. In the southern extension of the Amboseli Clays into Tanzania, meerschaum (sepiolite–hydrous magnesium silicate, used for the manufacture of tobacco pipes and ornamental carvings) occurs as banded...
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Series: GSA Field Guides
Published: 01 January 2017
DOI: 10.1130/2017.0045(02)
EISBN: 9780813756455
... the debris-flow basin and perforated pipe designed to drain the water while leaving the debris behind. These basins must be cleared of debris after each heavy rain. County Water District (OCWD) slide ( www.slideshare.net/asceoc/asce-dir-bilodeau-103114final ). Return to vehicle and continue following...
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