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汕头广澳半岛全新世风坡积砂丘岩在我国是首次发现的。它由风积与坡积组分的碎屑物质互层或混合成层组成,胶结物属低镁方解石。它是由热带暴雨期的片状流水与强风期的风搬运作用而堆积,再在淡水环境中沉淀胶结成松散的砂丘岩类。文中还探讨其沉积模式,并从地貌和沉积动力角度把东南沿海全新世碳酸盐胶结的岩石分为贝壳堤岩、海滩岩、砂堤岩、砂丘岩与风坡积砂丘岩。通过其特征对比,认为后三类不能作为海平面升降的标志。
The Shantou Guangao Peninsula Holocene wind slope sedimentary sand rock is the first discovery in our country. It consists of aeolian and slope sedimentary components of the intercalary or mixed layer composition, cement is a low-magnesium calcite. It is piled up by the wind-handling of sheet-shaped flowing water and strong wind during the tropical rainstorm and then settles into loose sandstone rocks in freshwater environments. In the paper, the sedimentary model is also discussed. From the perspective of geomorphology and depositional dynamics, the carbonate rocks cemented in the southeastern part of the southeast coast are divided into shell dike, beach rock, sand dike, sandstone and wind slope sedimentary sandstone. Through the comparison of its features, it is considered that the latter three categories can not be used as a sign of sea level rise and fall.