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Glacier advances at the Pleistocene/Holocene transition near Mount Rainier volcano, Cascade Range, United States.

机译：在美国喀斯喀特山脉的雷尼尔山火山附近的更新世/全新世过渡中，冰川不断前进。

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Glaciers in the vicinity of Mount Rainier advanced twice during late glacial/early Holocene time. Radiocarbon dates obtained from lake sediments adjacent to the corresponding moraines are concordant, indicting that the ages for the advances are closely limiting. The first advance occurred before 11,300 {dollar}sp{lcub}14{rcub}{dollar}C yr. BP (l3,200 cal yr BP). During the North Atlantic Younger-Dryas event, between 11,000 and 10,000 {dollar}sp{lcub}14{rcub}{dollar}C yr BP (12,900 and 11,600 cal yr BP), glaciers retreated on Mount Rainier, probably due to a lack of available moisture, but conditions may have remained cold. The onset of warmer conditions on Mount Rainier occurred around 10,000 {dollar}sp{lcub}14{rcub}{dollar}C yr BP (11,600 cal yr BP). Organic sedimentation lasted for at least 700 years before glaciers readvanced between 9800 and 8950 {dollar}sp{lcub}14{rcub}{dollar}C yr BP (10,900 and 9950 cal yr BP). Glaciers seem to have advanced in response to regional or local shifts in late-glacial climate. No evidence for a glacier advance during Younger Dryas time has been found. However. the Younger Dryas climatic reversal may have affected the Mount Rainier area, causing a cold, but dry, climate unfavorable to glacier advances.
机译：在晚冰川期或全新世早期，雷尼尔山附近的冰川前进了两次。从与相应的冰晶相邻的湖泊沉积物中获得的放射性碳数据是一致的，这表明该前移的年龄受到严格限制。第一个进展发生在11,300 {dol} sp {lcub} 14 {rcub} {dollar} C年之前。 BP（1200 cal yr BP）。在北大西洋Younger-Dryas事件期间，大约11,000至10,000 {dol} sp {lcub} 14 {rcub} {dol} C yr BP年（12,900和11,600 cal BP）之间，雷尼尔山的冰川退缩了，这可能是由于缺乏可用水分，但条件可能仍然很冷。瑞尼尔山开始出现温暖的条件大约发生在10,000 BP（美元）sp {lcub} 14 {rcub} {dol}年BP（11,600 cal BP）。有机沉积持续了至少700年，之后冰川在9800至8950年之间退缩，直到10800年至9950年之间。冰川似乎是对晚冰期气候的区域或局部变化的响应而发展的。没有发现年轻得里亚斯时代冰川前进的证据。然而。年轻的德里亚斯气候逆转可能影响了雷尼尔山地区，造成了寒冷但干燥的气候，不利于冰川的发展。

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