"Reddish brown earth" is not a specific term in geology or soil science. It's a general description of a soil color. To understand what kind of earth you're referring to, we need more information.

To help me identify the type of reddish brown earth, please tell me:

* Where is it located? (Country, region, specific location)

* What is its texture? (Sandy, loamy, clayey)

* What is its use? (Agricultural, forestry, construction)

* Is it naturally occurring or man-made?

Once I have this information, I can help you determine the specific type of reddish brown earth you're looking for.