There might be a cold event in the period of the Middle Holocene.
本区可能也存在着中全新世的降温事件。
The warmest stage was not in Middle Holocene but in Late Holocene.
最暖期不是在中全新世，而是在晚全新世。
The bog in upper stream formed early, and had begun in early Middle Holocene;
上游形成时间较早，始于中全新世前期；
The bog in upper stream formed early, and had begun in early Middle Holocene;
上游形成时间较早，始于中全新世前期；
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