This paper presents a reconstruction of the Holocene evolution of the Inskip Peninsula in SE Queensland. The peninsula links two major dune fields, the Cooloola Sand Mass to the south and K’gari (Fraser Island) to the north. Geomorphic features of this peninsula include remnant parabolic dunes, numerous beach ridges with foredunes, and a series of spits. Together these features provide insight into Holocene coastal evolution and changing marine conditions. A remnant beach ridge/foredune complex at the northern portion of Inskip may have been connected to K’gari and a river/tidal channel near Rainbow Beach township which separated it from the Cooloola Sand Mass to the south. This channel avulsed northward in the early mid-Holocene (after 8.8 ka) with spit development from the south. This was followed by a phase of beach-ridge/foredune complex development that started by ~6.7 ka. Stratigraphic evidence from the highest and best developed parabolic dunes in the northern portion of Inskip Peninsula indicates dune development from the mid-Holocene beach complex by 4.8 ka. Beach ridges with foredunes continued to prograde but notably declined in size during the late-Holocene. In the latest Holocene (<4.8 ka) many of the late-Holocene beach ridges/foredune complexes have been truncated by a re-orientation of the shoreline and longshore sediment transport has promoted the growth of the modern spit at the northern end of the peninsula. Erosive and longshore processes continue to be highly active because of tidal interactions between Great Sandy Strait and the Coral Sea. This detailed study of Inskip Peninsula’s evolution aids significantly in future coastal management decisions, and provides evidence for World Heritage Area extension for the Cooloola Sand Mass, including the incorporation of Inskip Peninsula itself. It also contributes to the global understanding to coastal evolution in an area of strong wave and tidal interaction.

本文介绍了昆士兰东南部因斯基普半岛全新世演化的重建。半岛连接着两个主要的沙丘，南部是库鲁拉沙地，北部是 K'gari（弗雷泽岛）。该半岛的地貌特征包括残留的抛物线沙丘、众多带前丘的海滩山脊和一系列沙坑。这些特征共同提供了对全新世海岸演化和不断变化的海洋条件的洞察。Inskip 北部的残余海滩山脊/前缘复合体可能与 K'gari 和彩虹海滩镇附近的一条河流/潮汐通道相连，将其与南部的 Cooloola Sand Mass 隔开。这条水道在中全新世早期（8.8 ka 以后）向北撕毁，南部有喷流发育。随后是约 6.7 ka 开始的海滩-山脊/前缘复合体开发阶段。来自因斯基普半岛北部最高和最发达的抛物线沙丘的地层证据表明，从 4.8 ka 的中全新世海滩复合体开始发育沙丘。在全新世晚期，具有前足的海滩山脊继续前移，但规模明显缩小。在最新的全新世 (<4.8 ka) 中，许多晚全新世的海滩山脊/前滩复合体因海岸线的重新定向而被截断，沿岸沉积物运输促进了半岛北端现代沙嘴的生长. 由于大沙海峡和珊瑚海之间的潮汐相互作用，侵蚀和沿岸过程继续高度活跃。这项对因斯基普半岛演变的详细研究极大地有助于未来的沿海管理决策，并为库鲁拉沙地世界遗产区的扩展提供了证据，包括将因斯基普半岛本身纳入其中。它还有助于全球了解强波浪和潮汐相互作用地区的海岸演变。