The Lower Holocene in the Xiaoshan-Yuhang area, Zhejiang, is composed of fine sand, silt and clay beds. They are rich in organic matter and constitute an important "gas source formation".

前言： 浙江萧山—余杭地区全新统下部粉细砂、 淤泥质粘土层有机质丰富，是重要的“生气层系”，所夹的贝壳层和砂层是主要的“储气层”。

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This spongy tissue serves as a source of calcium for eggshell formation.

这种海绵状组织是形成蛋壳的钙质来源。

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Scientists believe water activity affected this plateau after the formation of the nearby canyons. Although the source of water and sediment remains uncertain.

科学家相信，在附近峡谷形成之前这片高原受到过水的影响，虽然水源和泥沙的问题仍不明朗。

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