<https://sciencing.com/difference-ice-sea-pack-ice-8415007.html>
<http://schema.org/description>
"At first glance, ice seems to be a rather uniform substance. However, depending on where and how it was formed, bodies of ice can differ vastly. Glaciers, usually formed high in mountainous regions within the Arctic Circle, form enormous, advancing masses of ice that exert impressive force despite their generally slow pace. In contrast, sea pack ice forms at sea, often creating sheets of solid ice that can be used effectively as land bridges for humans and animals."
<https://sciencing.com/difference-ice-sea-pack-ice-8415007.html>