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Archival photos taken during submersible dives to Escanaba Trough, 1985-1989

By Pacific Coastal and Marine Science Center
Glassy, fresh pillow basalt flow at NESCA site Older, oxidized sulfide deposit colonized by sponges at SESCA site Sulfide mound and talus at NESCA site. Rectangular marker at center of photograph is 15 by 30 cm Side of actively venting massive sulfide chimney colonized by tube worms and palm worms Tube worms and anemones colonize massive sulfide talus where diffuse hydrothermal venting is occurring Side of sulfide mound showing cluster of tube worms, anemones, and bacterial mats Hydrothermal deposits (primarily barite) adjacent to site of active venting Dynaphot photomicrographs of foraminifers from Escanaba Trough

Detailed Description

A slideshow of archival photographs of sedimentary and volcanic features, massive sulfide deposits and hydrothermal features, and photomicrographs of foraminifers from Escanaba Trough.

Sources/Usage

Public Domain.

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Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore northern California

No abstract available.
Authors
Robert A. Zierenberg, Carol A. Reiss

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