Carbonate cements in Holocene beachrock: example from Bahiret et Biban, southeastern Tunisia

Strasser, André; Davaud, Eric Jean; Jedoui, Younes

doi:10.1016/0037-0738(89)90103-6

Cited by 83 publications

(42 citation statements)

References 12 publications

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“…Genesis of the beachrock in the study area was favoured by the mixing of marine and fresh water as well as by the high permeability of the sediment. Beachrock occurrence has been reported mainly in lower latitudes (e.g., Moore, 1973;Strasser et al, 1989;Semeniuk, 1996;Gischler and Lomando, 1997;Webb et al, 1999;Vieira and De Ros, in press) but they can also form in higher latitudes (e.g., Kneale and Viles, 2000;Rey et al, 2004). Even for similar latitudes beachrock can or not form, depending on the environmental parameters as reported in Canaria Islands where beachrock only formed in the west coast which is dominated by a dry warm climate (Calvet et al, 2003).…”

Section: Discussionmentioning

confidence: 91%

Holocene sea level fluctuations and coastal evolution in the central Algarve (southern Portugal)

et al. 2007

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In Armação de Pêra Bay, southern Portugal, environmental changes during the Holocene can be interpreted based on the morphological and sedimentological similarities between older geomorphic features (cemented beach and dune rocks) and present coastal features. Using knowledge of the present beach and dune processes, we propose a two-step model for the evolution of Armação de Pêra Bay. First, during the rapid sea level rise between about 8 800 and 6 600 yr cal BP, the bay changed from a positive to a negative budget littoral cell and transgressive dunes formed, favoured by drought conditions. At about 5 000 yr cal BP, during a sea level maximum, beach width was less than the critical fetch and dunes stabilized and underwent cementation during the wetter Atlantic climatic event. The second phase of dune accumulation started at about 3 200 yr cal BP, due to a regression of sea level during which the bay changed back to a positive budget littoral cell in which beach width was greater than the critical fetch. Currently, the beach width is less than the critical fetch, dunes are inactive, and the sedimentary budget is negative due to sediment storage in local river systems.

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Section: Discussionmentioning

confidence: 91%

Holocene sea level fluctuations and coastal evolution in the central Algarve (southern Portugal)

et al. 2007

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“…Precipitation of carbonate cement in beachrock sediments may be inorganic or biologically mediated [9,17] . The inorganic route predominates most beachrock cementation histories, with aragonite being the initial cement that alters subsequently to either high-Mg or low-Mg calcite through diagenetic alternation in the meteoric environment [18] .…”

Section: Beachrock Cementsmentioning

confidence: 99%

Microbial carbonates in Holocene beachrocks, Shuiweiling, Luhuitou Peninsula, Hainan Island

Teng

Shen

2008

Sci. China Ser. D-Earth Sci.

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Microbial communities and deposits serving as indicators of environmental and climatic changes and acting as a factor to affect modern coral reef growth are new research fields. Reitner [1] considered that microbialites may indicate a transgressive sequence based on the research of coral-coralline red algae-microbialites succession in cryptic environment of Great Barrier Reef. Delgado and Lapointe [2] suggested that the increased rate of microbial carbonate production is induced by increased nutrition and eutrophication in Florida Keys. Feldmann and McKenzie [3] considered that thrombolites of microbial origin occurring in the modern intertidal environment of Bahama bank were formed in a condition with sea-level rise and nutrition increase. Riding [4] pointed out that the intertidal stromatolites of Shark Bay of west Australia were developed during the period of sea-level fall. According to the study of modern microbial carbonates by Sprachta [5] , microbial carbonates are sensitive to seasonal variation; they may be developed more rapidly during the hot humid seasons. In modern reef systems (such as New Caledonia in the South Pacific and

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“…We have not studied them and we only make such an affirmation based on literature (Lucas, 1955 References given by Mauz and Antonioli ( [ Fabricius et al, 1970], [Strasser et al, 1989] and [El-Sammak and Tucker, 2002]) show the petrographic differences (among others, such as mechanical abrasion, boring by organisms, broken oolite envelopes) between "in situ" and reworked ooids. The percentage of oolite particles within the sediment is also reported as an indicator for "in situ" oolites (Strasser et al, 1989), who considered 60-80% of oolites a good indicator of "in situ" formation.…”

Section: Wind Regime During the Last Interglacialmentioning

confidence: 79%

Reply to the comments by Mauz, B. and Antonioli, F. on “Sea Level and Climate Changes during OIS 5e in the Western Mediterranean”

et al. 2009

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Carbonate cements in Holocene beachrock: example from Bahiret et Biban, southeastern Tunisia

Cited by 83 publications

References 12 publications

Holocene sea level fluctuations and coastal evolution in the central Algarve (southern Portugal)

Holocene sea level fluctuations and coastal evolution in the central Algarve (southern Portugal)

Microbial carbonates in Holocene beachrocks, Shuiweiling, Luhuitou Peninsula, Hainan Island

Reply to the comments by Mauz, B. and Antonioli, F. on “Sea Level and Climate Changes during OIS 5e in the Western Mediterranean”

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