Mid-Holocene emergence of southern Tunisian coasts

Christophe Morhange; Paolo Antonio Pirazzoli

doi:10.1016/j.margeo.2005.06.031

Mid-Holocene emergence of southern Tunisian coasts

Christophe Morhange, Paolo Antonio Pirazzoli

Research output: Contribution to journal › Article › peer-review

Abstract

We present new sea-level data from the coasts of southern Tunisia, between the Gulf of Gabès and the Libyan border. The work tests, previously, published evidence on Holocene shorelines, and confirmed that a distinct emergence has occurred in this area during this time. The emergence peak lies at least 186 ± 11 cm above present and is inferred from: (1) AMS radiocarbon dates of subtidal vermetids and boring shells collected in growth position, and (2) careful assessment of tidal heights. Maximum emergence took place between about 6000 and 5000 ¹⁴C years BP; it cannot be ascribed to tectonics and is probably related to post-glacial hydro-isostatic effects. It challenges the inference of a 3-m global sea-level rise since 6000 years BP due to residual Antarctic melting.

Original language	English
Pages (from-to)	205-213
Number of pages	9
Journal	Marine Geology
Volume	220
Issue number	1-4
DOIs	https://doi.org/10.1016/j.margeo.2005.06.031
State	Published - 15 Oct 2005
Externally published	Yes

Bibliographical note

Funding Information:
The authors kindly thank the Centre National de la Recherche Scientifique (Eclipse Program) for financial assistance. We thank Bernard Simon (Service Hydrographique et Océanographique de la Marine) for having provided detailed tide predictions in the Jerba Island area, J. Laborel and an anonymous reviewer for very useful suggestions and N. Marriner for revision of the English text.

Keywords

Bioconstructions
Eustasy
Holocene
Isostasy
Sea-level change
Tunisia

ASJC Scopus subject areas

Oceanography
Geology
Geochemistry and Petrology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.margeo.2005.06.031

Cite this

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title = "Mid-Holocene emergence of southern Tunisian coasts",

abstract = "We present new sea-level data from the coasts of southern Tunisia, between the Gulf of Gab{\`e}s and the Libyan border. The work tests, previously, published evidence on Holocene shorelines, and confirmed that a distinct emergence has occurred in this area during this time. The emergence peak lies at least 186 ± 11 cm above present and is inferred from: (1) AMS radiocarbon dates of subtidal vermetids and boring shells collected in growth position, and (2) careful assessment of tidal heights. Maximum emergence took place between about 6000 and 5000 14C years BP; it cannot be ascribed to tectonics and is probably related to post-glacial hydro-isostatic effects. It challenges the inference of a 3-m global sea-level rise since 6000 years BP due to residual Antarctic melting.",

keywords = "Bioconstructions, Eustasy, Holocene, Isostasy, Sea-level change, Tunisia",

author = "Christophe Morhange and Pirazzoli, {Paolo Antonio}",

note = "Funding Information: The authors kindly thank the Centre National de la Recherche Scientifique (Eclipse Program) for financial assistance. We thank Bernard Simon (Service Hydrographique et Oc{\'e}anographique de la Marine) for having provided detailed tide predictions in the Jerba Island area, J. Laborel and an anonymous reviewer for very useful suggestions and N. Marriner for revision of the English text.",

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doi = "10.1016/j.margeo.2005.06.031",

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AU - Morhange, Christophe

AU - Pirazzoli, Paolo Antonio

N1 - Funding Information: The authors kindly thank the Centre National de la Recherche Scientifique (Eclipse Program) for financial assistance. We thank Bernard Simon (Service Hydrographique et Océanographique de la Marine) for having provided detailed tide predictions in the Jerba Island area, J. Laborel and an anonymous reviewer for very useful suggestions and N. Marriner for revision of the English text.

PY - 2005/10/15

Y1 - 2005/10/15

N2 - We present new sea-level data from the coasts of southern Tunisia, between the Gulf of Gabès and the Libyan border. The work tests, previously, published evidence on Holocene shorelines, and confirmed that a distinct emergence has occurred in this area during this time. The emergence peak lies at least 186 ± 11 cm above present and is inferred from: (1) AMS radiocarbon dates of subtidal vermetids and boring shells collected in growth position, and (2) careful assessment of tidal heights. Maximum emergence took place between about 6000 and 5000 14C years BP; it cannot be ascribed to tectonics and is probably related to post-glacial hydro-isostatic effects. It challenges the inference of a 3-m global sea-level rise since 6000 years BP due to residual Antarctic melting.

AB - We present new sea-level data from the coasts of southern Tunisia, between the Gulf of Gabès and the Libyan border. The work tests, previously, published evidence on Holocene shorelines, and confirmed that a distinct emergence has occurred in this area during this time. The emergence peak lies at least 186 ± 11 cm above present and is inferred from: (1) AMS radiocarbon dates of subtidal vermetids and boring shells collected in growth position, and (2) careful assessment of tidal heights. Maximum emergence took place between about 6000 and 5000 14C years BP; it cannot be ascribed to tectonics and is probably related to post-glacial hydro-isostatic effects. It challenges the inference of a 3-m global sea-level rise since 6000 years BP due to residual Antarctic melting.

KW - Bioconstructions

KW - Eustasy

KW - Holocene

KW - Isostasy

KW - Sea-level change

KW - Tunisia

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U2 - 10.1016/j.margeo.2005.06.031

DO - 10.1016/j.margeo.2005.06.031

M3 - Article

AN - SCOPUS:26044433623

SN - 0025-3227

VL - 220

SP - 205

EP - 213

JO - Marine Geology

JF - Marine Geology

IS - 1-4

ER -

Mid-Holocene emergence of southern Tunisian coasts

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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