The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示出小期沉积通量的减少和上个世纪六十年代之后沉积通量的增加。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第期称为「休期」，因其加拿大南部休湖北方的岩石中清晰可见。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示期沉积通量的减少和上个世纪六十年代之后沉积通量的增加。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第一次期称为「休期」，因其遗迹在加拿大南部休湖北方的岩石中清晰可见。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示出小冰期积通量的减少和上个世纪六十年代积通量的增加。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第一次冰期称为「休冰期」，因其遗迹在加拿大南部休的岩石中清晰可见。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示出小冰期通量的减少和上个世纪六十年代之通量的增加。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第一次冰期称为「休冰期」，因其遗迹在加拿大南部休方的岩石中清晰可见。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示出小冰期沉积通量的减少和上个世纪六十年代之后沉积通量的。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

一次冰期称为「休冰期」，因其遗迹在南部休湖北方的岩石中清晰可见。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭冰期沉积通量的减少和上个世纪六十年代之后沉积通量的增加。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第一次冰期称为「休冰期」，因其遗迹在加拿大南部休湖北方的岩石中清晰可见。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示出小冰沉积通量的减少和上个世纪六十年代之后沉积通量的增加。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第一次冰「休冰」，遗迹在加拿大南部休湖北方的岩石中清晰可见。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示出小冰期沉的减少和上个世纪六十年代之后沉的增加。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第一次冰期称为「休冰期」，因其遗迹在加拿大南部休湖北方的岩石中清晰可见。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示出小沉积通量的减少和上个世纪六十年代之后沉积通量的增加。

The first of these glacial periods is often called the Huronian glaciation because it is well exposed in rocks just north of Lake Huron in southern Canada.

第一次称「」，因其遗迹在加拿大南部湖北方的岩石中清晰可见。