Las Canteras beach outcrops are vestiges of palaeoenvironments that represent changes in sea level and/or climate conditions. Using broad sedimentological, mineralogical, geochemical, and dating studies, three different palaeoenvironmental facies were distinguished. (1) The lower facies was defined as beachrock, formed by decametric calcarenite layers, dipping 8–5° seaward and composed mainly of sand grains and two generations of isopachous low magnesium calcite (LMC) cement in a context of lower Holocene interglacial stage (>6600 ± 30 cal. years BP) rising sea level and coastal progradation. (2) During the middle Holocene (about 6600 ± 30 cal. years BP), a coastal progradation phase and/or lower sea level might lead to land emersion and soil development, with an abundance of terrestrial gastropods. (3) The upper Holocene (<6600 ± 30 cal. years BP) aeoleanite facies represents coastal dunes formed by calcarenite levels were identified only in the central arc of the beach, dipping 20° landward and cemented by phreatic LMC and vadose aragonite. This aeolian deposit might represent the highest coast progradation or the end of a low stand in sea level, whereas its cementation likely represents the beginning of the sea level rise towards the present high stand.

拉斯坎特拉斯海滩的露头是古环境的遗迹，代表着海平面和/或气候条件的变化。使用广泛的沉积学，矿物学，地球化学和测年研究，区分了三种不同的古环境相。（1）下相被定义为滩岩，由十足钙钙石层形成，向海倾斜8-5°，主要由砂粒和在全新世间冰期下的背景下的两代等渗低钙方解石（LMC）水泥组成（ > 6600±30 cal。BP）海平面上升和沿海退化。（2）在全新世中期（约BP 6600±30 cal。），沿海发育阶段和/或较低的海平面可能导致陆地出没和土壤发育，并伴有大量陆生腹足纲动物。（3）上全新世（<6600±30 cal。BP）风化岩相代表仅由海滩中心弧形，由钙镁铁矿水平形成的沿海沙丘，向内倾斜20°，并由潜水LMC和渗碳文石胶结。这种风沙沉积物可能代表了沿海地区的最高进展或海平面低位的结束，而其胶结作用可能代表了海平面向当前高位上升的开始。