Pollen determination from sediment core of Lake Alchichica in Mexico
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The pollen samples were collected from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a...
花粉样品采集自从阿尔奇奇卡湖（Lake Alchichica，北纬19°24′38″，西经97°24′14″，海拔2322米（meters above sea level, masl））水深约60米处获取的长57厘米的沉积岩芯，使用……
