Soil profiles–-Hawaii

Scope and Contents

Description provided by photographer Roy Simonson reads: "Profile of Koolau clay, Hydrol Humic Latosol, formed partly in volcanic ash and partly in the underlying laterite, northern slope of Kauai; Plinthic Tropaquept."

Scope and Contents

Description provided by photographer Roy Simonson reads: "Kukaiao clay, a Humic Latosol derived from volcanic ash over weathered basalt in the 100-inch rainfall belt; Kukaiao ranch on windward side of Hawaii. Hydric Hopludand?"

Scope and Contents

Description provided by photographer Roy Simonson reads: "Profile of Lualualei clay, classified as dark magnesium clay in the survey report; a Grumusol formed from alluvium washed from basic igneous rocks. This is at east edge of Waianae, Oahu. Vertisol."

Scope and Contents

Description provided by photographer Roy Simonson reads: "Profile of Molokai clay, Low Humic Latosol formed from olivine basalt in lava flow near junction of Ewa-Schofield Barracks road, Oahu."

Scope and Contents

Description provided by photographer Roy Simonson reads: "Profile of Pauwela clay, Humic Ferruginous Latosol, on the lee side of Maui (west side); Kandiudult."

Scope and Contents Profile of Podzol-like soil in Kauai, Hawaii. Description provided by photographer Roy Simonson reads: "Profile of Podzol-like soil at elevation of 3500 feet on northern part of Kauai. Profile has peaty surface a few inches thick, an A1 horizon 5 inches thick, a gleyed A2 horizon, and thin hard brittle ironstone sheets at 12, 18, and 26 inches. Gleyed horizons occur between 16 and 18 inches and between 18 and 26 inches (between the ironstone sheets). Soil material is clayey and feels like...

Scope and Contents

Roadcut showing a soil profile of Kolekole Clay in Oahu, Hawaii. Description provided by photographer Roy Simonson reads: "Stretch of roadcut showing profile of Kolekole clay, near site of H139; Ustoxic Humitropept"