Definition

A line on a map that connects areas with the same thickness of a geological layer.

Example

The geologist drew an isopach to show the varying thickness of the sedimentary rock.

Conversation

Have you ever heard of an isopach?

Yeah, I think it’s related to geology, right?

Exactly! It shows the thickness of different rock layers on a map.

That sounds really useful for understanding how the earth is structured.

Synonyms & Antonyms

Root Explanation

Isopach is formed from "iso-" (meaning equal) and "pachus" (from Greek "pachus", meaning thick). The term refers to lines on a map that connect points of equal thickness of a geological layer.

Memory Tip

Think of 'equal' ('iso-') thickness ('pachus') when you picture isopach lines on a geological map.

Visually Confused Words