Item talk:Q56821

Recent sandy deposits at five northern California coastal wetlands — Stratigraphy, diatoms, and implications for storm and tsunami hazards

A recent geological record of inundation by tsunamis or storm surges is evidenced by deposits found within the first few meters of the modern surface at five wetlands on the northern California coast. The study sites include three locations in the Crescent City area (Marhoffer Creek marsh, Elk Creek wetland, and Sand Mine marsh), O’rekw marsh in the lower Redwood Creek alluvial valley, and Pillar Point marsh at the northern end of Half Moon Bay.

Table of Contents

• Abstract
• Introduction
• Methods
• Marhoffer Creek Marsh—Crescent City Study Site I
• Elk Creek Wetland—Crescent City Study Site II
• Sand Mine Marsh—Crescent City Study Site III
• O’rekw Marsh, Redwood National and State Parks
• Pillar Point Marsh, San Mateo County
• Suggestions for Future Research
• References Cited
• Appendix