Holocene coastal evolution around the ancient seaport of Oiniadai, Acheloos alluvial plain, NW Greece
Holocene coastal evolution around the ancient seaport of Oiniadai, Acheloos alluvial plain, NW Greece
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希腊西北部阿奇洛斯冲积平原奥伊尼亚代古海港周围的全新世海岸演化
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
K. Borg
中科院分区：
文献类型：
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作者：
A. Vött;H. Brückner;Armin Schriever;M. Handl;M. Besonen;K. Borg
前特里卡多岛（Trikardo）及其古代奥伊尼亚代（Oiniadai）遗址位于现代阿奇洛斯（Acheloos）冲积平原中部，该平原是希腊最大的三角洲地区之一。这项研究的主要目的是揭示全新世景观演化及其不同原因。古老的奥伊尼亚代海港见证了历史时期沿海地区的巨大变化。该地点曾经属于埃奇纳德斯群岛，在过去 6,000 年左右的时间里，该群岛的大部分被阿奇洛斯群岛的沉积物吞没。目前距公海的距离为 9 至 11 公里。文献分析表明，对于（i）阿奇卢斯三角洲和冲积平原如何在全新世期间形成，以及（ii）古代奥伊尼亚代如何与海洋相连，存在不同的解释。然而，有关地层学的信息很少。沿着选定的样线检索了一系列振动，并利用沉积相分布的横向和纵向变化来解释全新世期间的景观变化。结果表明，(i) 特里卡多以北和以东的巨大泻湖系统于公元前 5 世纪形成，(ii) 阿奇卢斯三角洲前缘已于公元前 2000 年左右通过奥伊尼亚代以南，(iii) 奥伊尼亚代的船坞通过向西开放的泻湖系统与爱奥尼亚海相连。这个泻湖最终在公元2世纪淤塞。特里卡多的南侧，被认为是南部港口所在的地方，毗邻一个浅海海湾，后来变成了一个泻湖。
The former island of Trikardo with the ruins of ancient Oiniadai lies in the midst of the modern Acheloos alluvial plain, one of the largest deltaic areas in Greece. The main objective of this study was to reveal Holocene landscape evolution and its different causes. The ancient seaport of Oiniadai witnessed enormous coastal change during historical times. The site once belonged to the Echinades Islands, most of which have been engulfed by sediments of the Acheloos during the last 6,000 or so years. The present distance to the open sea is between 9 and 11 km. Analysis of literature shows differing interpretations about (i) how the Acheloos delta and alluvial plain formed during the Holocene, and (ii) how ancient Oiniadai was connected to the sea. However, little information about stratigraphy exists. A series of vibracorings were retrieved along selected transects, and lateral and vertical changes in sedimentary facies distribution were used to decipher landscape changes during the Holocene. Results suggest that (i) a vast lagoonal system north and east of Trikardo came into existence during the 5 th millennium BC, (ii) the Acheloos delta front had already passed south of Oiniadai by about 2000 cal BC, and (iii) Oiniadai’s shipsheds were connected to the Ionian Sea via a lagoonal system opening to the west. This lagoon finally silted up in the 2 nd century AD. The southern flank of Trikardo, where the southern harbour is assumed to have been located, lay adjacent to a shallow marine embayment which later turned into a lagoon.