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tubestone

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Journal Article
Journal: PALAIOS
Published: 01 November 2015
PALAIOS (2015) 30 (11): 802–805.
... as a tubestone microbialite. Although the issue may be more semantic than substantial, we consider their application of the term to the Cotham Marble to be incorrect. From the definition of Corsetti and Grotzinger (2005 , p. 361), “…tubestones are laterally continuous stromatolite sheets that enclose...
FIGURES
Journal Article
Journal: PALAIOS
Published: 01 November 2015
PALAIOS (2015) 30 (11): 806–809.
... and Wright suggest that the application of the term tubestone to the Cotham Marble is incorrect. Citing the definition of tubestones as “laterally continuous stromatolite sheets that enclose and isolate intra-stromatolite depressions filled with sediments” ( Corsetti and Grotzinger 2005 , p. 361), they argue...
FIGURES
Journal Article
Journal: PALAIOS
Published: 01 January 2014
PALAIOS (2014) 29 (1): 1–15.
... through the dendritic phases expose a reticulate dendritic framework separated by polygonal spaces (∼1–3 cm diameter), characteristic of “tubestone” microbialites. Microscopically, the dendrolites contain evenly distributed rod to filamentous putative microfossils (∼2 µm diameter and ∼10 µm in length...
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Journal Article
Journal: PALAIOS
Published: 01 August 2005
PALAIOS (2005) 20 (4): 348–362.
...FRANK A. CORSETTI; JOHN P. GROTZINGER Abstract The Neoproterozoic Noonday Dolomite (Death Valley, USA), a post-glacial cap carbonate, contains closely packed, meter-long, cm-wide, tube-like structures that define the vertical accretion direction. Similar tubestones are known from post-glacial cap...
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Image
Photographs of the pervasively cemented, <b>tubestone</b>, and coniform stromatoli...
Published: 01 July 2016
Figure 6. Photographs of the pervasively cemented, tubestone, and coniform stromatolitic dolostone facies, and the polymict conglomerate and sedimentary breccia facies. (A) Characteristic plan-view of “tubestone stromatolite” (WP04 52 m). (B) Coniform stromatolite carapace surrounding a bioherm
Image
FIGURE 5 —Nodular <b>tubestone</b> in weathered and sawed surfaces. Arrowhead 1 po...
in > PALAIOS
Published: 01 January 2009
FIGURE 5 —Nodular tubestone in weathered and sawed surfaces. Arrowhead 1 points to the white tubular core; arrowhead 2 points to the muddy outer annulus of a tubule. The tubular core projects out from the surface because the muddy outer annulus has weathered more readily. Scale bar 10 mm. Arrow
Image
FIGURE 3 —Noonday Dolomite <b>tubestone</b> associated with the flank of a large s...
in > PALAIOS
Published: 01 August 2005
FIGURE 3 —Noonday Dolomite tubestone associated with the flank of a large stromatolitic structure, southern Nopah Range locality; thin dashed line denotes stromatolitic lamination. The strata dip approximately 45° to the north (to the right in this photo); the field of view has been rotated
Image
FIGURE 4 —<b>Tubestone</b> host rock (the rock between the tube-structures) (A) Po...
in > PALAIOS
Published: 01 August 2005
FIGURE 4 —Tubestone host rock (the rock between the tube-structures) (A) Polished slab demonstrates the peloidal-like nature of host rock. (B) Photomicrograph of peloidal host rock. Micritic microclots were precipitated in situ and are surrounded by coarser clear spar. (C) Thin section
Image
FIGURE 5 —Cleaned specimens of the Noonday Dolomite <b>tubestone</b>. (A) Vertical...
in > PALAIOS
Published: 01 August 2005
FIGURE 5 —Cleaned specimens of the Noonday Dolomite tubestone. (A) Vertical section of the cleaned surface. From this vantage, the tubestone resembles typical columnar stromatolites that even appear to branch (arrow). In some areas, the host rock bridges the tubes. (B) Plan view of A. Note
Image
FIGURE 6 —<b>Tubestone</b> from the Winters Pass locality demonstrates that tubest...
in > PALAIOS
Published: 01 August 2005
FIGURE 6 —Tubestone from the Winters Pass locality demonstrates that tubestones need not be composed of meter-scale tube-like structures. Host-rock bridges are apparent where thin lamina of host rock occludes the tube. The host rock thins dramatically between tubes. Convex, stromatolitic host-rock
Journal Article
Journal: GSA Bulletin
Published: 01 July 2016
GSA Bulletin (2016) 128 (7-8): 1249–1269.
...Figure 6. Photographs of the pervasively cemented, tubestone, and coniform stromatolitic dolostone facies, and the polymict conglomerate and sedimentary breccia facies. (A) Characteristic plan-view of “tubestone stromatolite” (WP04 52 m). (B) Coniform stromatolite carapace surrounding a bioherm...
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Series: Geological Society, London, Memoirs, Geological Society, London, Memoirs
Published: 01 January 2011
DOI: 10.1144/M36.29
EISBN: 9781862394117
... to pink coloured, largely recrystallized, micropeloidal dolostone. Low-angle cross-stratification ( Aitken 1991 ), tubestone stromatolites ( Corsetti & Grotzinger 2005 ), and giant wave ripples ( Allen & Hoffman 2005 ) are also present in the Ol Mb. dolomite (Fig.  29.4 ). The Ol Mb. transgresses...
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Series: Geological Society, London, Memoirs, Geological Society, London, Memoirs
Published: 01 January 2011
DOI: 10.1144/M36.34
EISBN: 9781862394117
... micro-peloids hosting tubestone stromatolites and giant wave ripples, followed by decametres of dolomatized, pseudomorphosed former aragonite crystal fans. Carbon-isotope chemostratigraphy suggests that the Hula Hula diamictite is an early Cryogenian glacial deposit, and that, despite the absence...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2009
GSA Bulletin (2009) 121 (3-4): 448–473.
... of the Katakturuk Dolomite spanned much of the late Neoproterozoic. Approximately 500 m above the diamictite, a micropeloidal dolomite, with idiosyncratic textures that are characteristic of basal Ediacaran cap carbonates, such as tubestone stromatolites, giant wave ripples, and decameters of pseudomorphosed former...
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Image
FIGURE 8 —Two types of annular infillings found in Tepee Buttes <b>tubestones</b>....
in > PALAIOS
Published: 01 January 2009
FIGURE 8 —Two types of annular infillings found in Tepee Buttes tubestones.
Image
FIGURE 1 —Typical Neoproterozoic <b>tubestones</b> from the Noonday Dolomite, Deat...
in > PALAIOS
Published: 01 August 2005
FIGURE 1 —Typical Neoproterozoic tubestones from the Noonday Dolomite, Death Valley (A–C) and the Maiberg Formation, Otavi Group, Namibia (D, E). (A) Poorly preserved tubestone, lower Noonday Dolomite, Nopah Range, typical of the Death Valley area; tubes are filled with late-stage coarse spar (see
Image
FIGURE 10 —Younger analogues for Neoproterozoic <b>tubestones</b> that demonstrate...
in > PALAIOS
Published: 01 August 2005
FIGURE 10 —Younger analogues for Neoproterozoic tubestones that demonstrate tube-forming microbialites are not limited to Neoproterozoic post-glacial cap carbonates. (A) Polished upper surface of Cambrian tube-forming thrombolite from the Nopah Formation near Mountain Pass, Clark Mountains
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Photographs of selected contact relations discussed in text. (A) Transition...
Published: 01 July 2011
Mountains; thin, intraformational rhythmite breccia bed occurs in the center of the photo. (B) Thin Sentinel Peak Member (Ibex facies), Ibex Hills, showing tubestone clast–bearing debrites interbedded with thin-bedded platy dolostone. Two tubestone-breccia beds (marked by a concentration of brown silicified
Image
FIGURE 6 —Scanned thin section of longitudinal and transverse sections of a...
in > PALAIOS
Published: 01 January 2009
FIGURE 6 —Scanned thin section of longitudinal and transverse sections of a tubestone with an outer muddy annulus; longitudinal view illustrates the muddy outer annulus of a tubule (lower arrowhead 1) and the inner annular and sparry core (arrowhead 2); towards the top, a transverse view highlights
Image
Figure 1. Cap carbonate lithofacies: A: Typical laminated dolomicrite. B: F...
in > Geology
Published: 01 May 2001
of structure, related to repeated bedding disruption and cementation. E: Tubestone facies, attributed to outgassing of methane. F: Roll-up structure, interpreted to represent microbial binding by chemosynthetic and/or heterotrophic organisms in deep water. All examples are from northern Namibia, except D