Stable isotopes on fossile Macoma calcarea, Laptev Sea

Distance is samping profile along the shell valve from umbo to ventral margin, shell collected in 500 cm core depth, age determined by 14C AMS is 7.95 kyr采样剖面沿壳体壳瓣（shell valve）从壳顶（umbo）延伸至腹缘（ventral margin）；所采集的壳体取自岩芯中500厘米的深度处，其年代经加速器质谱碳十四（14C AMS）测定为7.95 kyr。