Abstract High-resolution shallow seismic information supported by sedimentological and geochemical data from sediment cores has been used for reconstruction of Holocene sea-level changes along the northern coast of the Persian Gulf. These investigations in the area of the North Qeshm Island Waterway (NQIW) near the Strait of Hormuz reveal a series of five prominent sea-level fluctuations starting with the second phase of regional postglacial sea-level rise recorded between 15.0 ka and 9.5 ka (ka = thousands of years before present). Based on our study, sea-level had reached −22 m before 9.1 ka. Postglacial sea level high-stand in the study area has been dated to have occurred around 6.0 ka, which was followed by a relative sea-level fall coeval with a regional climate change from humid to arid conditions at about 5.4 ka. After a renewed, but relatively short period of sea level rise associated with climate changes around 4.35 ka, sea-level fell again at about 3.3 ka and remained relatively stable from 3.2 ka until the present. We conclude that major sea-level changes in the Persian Gulf coincided with sea-level fluctuations in the Indian Ocean and observed changes in North Atlantic Ocean and atmospheric circulation and Greenland Ice Sheet melting. Thus, despite of regional tectonic instability, regional sea-level stand in the Persian Gulf has been controlled mainly by eustatic sea-level changes of the global ocean.

中文翻译：

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波斯湾全新世海平面变化

摘要 由沉积岩心沉积学和地球化学数据支持的高分辨率浅层地震信息已被用于重建波斯湾北部海岸全新世海平面变化。这些在霍尔木兹海峡附近的北格什姆岛航道 (NQIW) 地区进行的调查揭示了从 15.0 ka 到 9.5 ka (ka = 几千年前的现在）。根据我们的研究，海平面在 9.1 ka 之前已达到 -22 m。研究区冰后海平面高位发生在 6.0 ka 左右，随后发生相对海平面下降，区域气候从湿润到干旱条件在 5.4 ka 左右发生变化。更新后，但与气候变化相关的海平面上升时间相对较短，大约在 4.35 ka 左右，海平面在 3.3 ka 左右再次下降，并从 3.2 ka 到现在保持相对稳定。我们得出结论，波斯湾的主要海平面变化与印度洋的海平面波动同时发生，并观察到北大西洋和大气环流和格陵兰冰盖融化的变化。因此，尽管存在区域构造不稳定，波斯湾区域海平面高度主要受全球海洋的海平面变化控制。我们得出结论，波斯湾的主要海平面变化与印度洋的海平面波动同时发生，并观察到北大西洋和大气环流和格陵兰冰盖融化的变化。因此，尽管存在区域构造不稳定性，波斯湾区域海平面高度主要受全球海洋的海平面变化控制。我们得出结论，波斯湾的主要海平面变化与印度洋的海平面波动同时发生，并观察到北大西洋和大气环流和格陵兰冰盖融化的变化。因此，尽管存在区域构造不稳定，波斯湾区域海平面高度主要受全球海洋的海平面变化控制。