adjective (of a rock, mineral, etc.)
Examples from the Web for interbedded
In the Little Cumbrae they appear on the east side, where they underlie and are interbedded with the lavas.
The coal is found, as already described, interbedded with shales and sandstones.
Sheets of igneous rock are interbedded with the strata and many dikes of igneous rocks cut through the whole combination.Geology|William J. Miller
Near Lithgow extensive deposits of limonite, or clay-band ore, are interbedded with coal.
Interbedded with the Triassic sandstones are contemporaneous lava beds which were fed from dikes.The Elements of Geology|William Harmon Norton