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tufa

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Journal Article
Journal: Geology
Published: 01 January 2022
Geology (2022) 50 (1): 48–53.
... (California, USA) Pleistocene tufas allowed recognition of a distinctive calcite microtexture, termed guttulatic calcite, that forms during carbonate dehydration and is diagnostic for precursor ikaite. The texture is characterized by pseudo-hexagonal or spherical low-Mg cores, which likely formed initially...
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Journal Article
Published: 01 December 2021
South African Journal of Geology (2021) 124 (4): 817–842.
... ), supporting the extension of the Florisian–Cornelian Faunal Boundary to ca. 400 ka ( Klein, 1984 ). Travertine or tufa fans are surface carbonate features deposited in fluvial channels or at spring discharge points by waters containing high dissolved carbonate load. The thick, stratigraphically complex...
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Series: Geological Society, London, Special Publications
Published: 28 October 2021
DOI: 10.1144/SP507-2020-49
EISBN: 9781786209948
... and characterized by intense calcium carbonate precipitation in the form of tufa and lake sediments. Two main springs have different 14 C concentrations due to different geology and their variations were controlled by flow rates. Further downstream, at lakes to the Korana River that outflows from the lakes...
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Journal Article
Published: 04 March 2021
Journal of Sedimentary Research (2020) 90 (12): 1804–1828.
...Laura M. DeMott; Christopher A. Scholz ABSTRACT Lacustrine carbonate tufa deposits are common in present-day lakes and dry pans of the western United States, and large-scale deposits (> 100 m high) are found throughout the subbasins of Pleistocene Lake Lahontan. This study presents...
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Journal Article
Published: 04 February 2021
Journal of the Geological Society (2021) 178 (3): jgs2020-147.
...Sándor Kele; Emad S. Sallam; Enrico Capezzuoli; Mike Rogerson; Hamdalla Wanas; Chuan-Chou Shen; Mahjoor Ahmad Lone; Tsai-Luen Yu; Andrew Schauer; Katharine W. Huntington Abstract The tufa deposits in the Kurkur–Dungul area, southern Egypt, date from marine isotope stage (MIS) 11 to MIS 1. Springs...
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Journal Article
Published: 28 January 2021
Journal of Sedimentary Research (2020) 90 (11): 1601–1613.
... ). Other studies indicate diatoms may inhibit carbonate formation in freshwater settings. In their analysis of a fluvial tufa from a carbonate creek in southern Germany, Arp et al. (2001) observe that areas that contain abundant diatoms remain almost free of carbonate precipitates and that carbonate pore...
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Journal Article
Journal: GSA Bulletin
Published: 04 May 2020
GSA Bulletin (2020) 132 (11-12): 2669–2683.
... Basin; however, due to its proximity to the Pacific Northwest, it receives more precipitation than the southern Great Basin. Published studies of Lake Surprise have tracked the evolution of the lake levels through time using shore-zone tufa, inferring an abrupt increase in effective moisture...
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Journal Article
Published: 01 October 2018
Mineralogical Magazine (2018) 82 (5): 1119–1129.
...Elin Tollefsen; Gabrielle Stockmann; Alasdair Skelton; Carl-Magnus Mörth; Christophe Dupraz; Erik Sturkell ABSTRACT The hydrated carbonate mineral ikaite (CaCO 3 ·6H 2 O) is thermodynamically unstable at all known conditions on Earth. Regardless, ikaite has been found in marine sediments, as tufa...
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Journal Article
Published: 01 September 2017
Journal of Sedimentary Research (2017) 87 (9): 967–985.
...LIAM J. DORNEY,; JUDITH TOTMAN PARRISH,; MARJORIE A. CHAN,; STEPHEN T. HASIOTIS ABSTRACT Carbonate deposits in the Jurassic Navajo Sandstone of Utah reflect deposition in interdune lakes and springs. Interdune-lake deposits consist of flat-lying carbonate units. Springs formed tufa mounds...
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Journal Article
Published: 01 September 2016
Bulletin de la Société Géologique de France (2016) 187 (4-5): 225–235.
...Benjamin Bourel; Jean-David Moreau; Vincent Trincal; Anne-Véronique Walter-Simonnet Abstract Tufas bearing plant macroremains are uncommon in the Causses Basin (southern France). Here, we report a new fossiliferous tufa deposits at Mende, in Lozère. This palaeontological site is the first...
Journal Article
Published: 01 February 2015
Italian Journal of Geosciences (2015) 134 (1): 77–85.
... Italiana, Roma 2015 2015 Società Geologica Italiana waterfall tufa speleothems stable carbon and oxygen isotopes microbial activity The term “travertino” is an altered form of the Latin “lapis tiburtinus ” (stone of Tibur), being a hydrothermal travertine deposit near Rome ( P edley...
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Journal Article
Journal: Geosphere
Published: 01 June 2013
Geosphere (2013) 9 (3): 444–459.
...Jon E. Spencer; P. Jonathan Patchett; Philip A. Pearthree; P. Kyle House; Andrei M. Sarna-Wojcicki; Elmira Wan; Jennifer A. Roskowski; James E. Faulds Abstract The lower Pliocene Bouse Formation in the lower Colorado River Valley (southwestern USA) consists of basal marl and dense tufa overlain...
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Journal Article
Published: 01 April 2013
Journal of Sedimentary Research (2013) 83 (4): 309–322.
...M. Cinta Osácar; Concha Arenas; Marta Vázquez-Urbez; Carlos Sancho; Luis F. Auqué; Gonzalo Pardo A bstract : A 12-year study (2000–2012) of the stable isotopes of recent fluvial tufas has been performed in the Monasterio de Piedra Natural Park (River Piedra, NE Iberian Peninsula), an area...
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Journal Article
Journal: Geology
Published: 01 March 2013
Geology (2013) 41 (3): 351–354.
... distinguished from the younger shorelines ( Fig. 2C ). To test the Holocene age assumption we dated shorelines from two lake systems, Ngangla Ring Tso and Chabyer Tsaka (Zabuye), using 14 C and U-Th dating of shoreline tufas ( Fig. 1 ; Fig. DR1 and Tables DR1 and DR2 in the Data Repository). Tufas (CaCO 3...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 2013
AAPG Bulletin (2013) 97 (1): 27–60.
...Paul M. (Mitch) Harris; James Ellis; Samuel J. Purkis Abstract Select lacustrine and marine depositional settings show a spectrum of styles of carbonate deposition and illustrate the types of carbonates, with an emphasis on microbialites and tufa, to be expected in early rift settings. Early rift...
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Journal Article
Journal: PALAIOS
Published: 01 October 2012
PALAIOS (2012) 27 (10): 693–706.
... and associated with carbonate tufa that precipitated from the ancient lake or declining seaway waters formed along the steep walls of the valley over a period of 1,000 years or more. Paleoenvironmental conditions likely conducive to formation of these unusual bioherms include: non-normal marine salinity, warm...
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Journal Article
Published: 01 July 2012
Journal of the Geological Society (2012) 169 (4): 461–476.
... properties of hydrothermal fluids. * (e-mail: brogiandrea@unisi.it ) 10 11 2011 24 1 2012 © The Geological Society of London 2012 Recently, studies of continental carbonates, utilizing travertines and/or calcareous tufa ( Ford & Pedley 1996 ; Capezzuoli et al. 2010 ) have...
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Series: GSA Special Papers
Published: 01 December 2011
DOI: 10.1130/2011.2483(15)
Journal Article
Published: 01 August 2011
Journal of Sedimentary Research (2011) 81 (8): 553–561.
... spectacularly in Ikka Fjord in southwest Greenland as submarine carbonate tufa columns. Here, ikaite is formed as a result of submarine spring water mixing with cold seawater. As ikaite disintegrates at temperatures above 6–7°C, it has been speculated that global warming could endanger this unique habitat...
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Journal Article
Published: 01 February 2011
Environmental & Engineering Geoscience (2011) 17 (1): 53–66.
... to the precipitation of calcium carbonate, or tufa, which can impair drainage and clog filter fabrics, which in turn can lead to premature failure of roads and other infrastructure systems. Tufa precipitation of RCA has been studied in various states, but no studies have been conducted on RCA containing a coarse...
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