Abstract
Mineralogical, chemical and micromorphological analyses of several paleosol samples indicate that they are all Oxisols that developed under terrestrial tropical conditions. The very low ratio of silica versus sesquioxides and the high proportions of kaolinite and hematite indicate advanced soil weathering. The soil material of the alluvial-derived paleosols is rich in fine- to coarse quartz grains; those intercalated within basalt flows originated under relatively more stable conditions. Since the paleosols are rich in hematite, and without gibbsite, they were apparently formed under tropical conditions with periodic short dry seasons in the outer tropical belt. -from Authors
| Original language | English |
|---|---|
| Pages (from-to) | 277-284 |
| Number of pages | 8 |
| Journal | Unknown Journal |
| State | Published - 1994 |