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.

但纹层厚度的变化能揭示出小冰期沉积通量的减少和上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.

但纹层厚度变化可能揭示出小冰期沉积通量减少和上个世纪六十年沉积通量增加。

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。

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.

但纹层厚度变化可能揭示出小冰期沉积通少和个世纪六十年代之后沉积通增加。

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通量的减少和上个世纪六十年代之后通量的增加。

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.

第一次冰称为「休冰」，因其遗迹在加拿大南部休湖北方的岩石中清晰可见。