@inbook {Campbell1994,
	title = {{Chemistry of hydrothermal fluids from the Escanaba Trough, Gorda Ridge}},
	booktitle = {Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California},
	series = {U.S. Geological Survey Bulletin},
	number = {2022},
	year = {1994},
	pages = {201{\textendash}221},
	publisher = {U.S. Geological Survey},
	organization = {U.S. Geological Survey},
	address = {Reston, Va.},
	author = {Campbell, A C and German, C R and Palmer, M R and Gamo, T and Edmond, J M},
	editor = {Morton, J L}
}
@article {Campbell1988,
	title = {{Chemistry of hot springs on the Mid-Atlantic Ridge}},
	journal = {Nature},
	volume = {335},
	number = {6190},
	year = {1988},
	pages = {514{\textendash}519},
	issn = {0028-0836},
	doi = {10.1038/335514a0},
	url = {http://dx.doi.org/10.1038/335514a0},
	author = {Campbell, A C and Palmer, M R and Klinkhammer, G P and Bowers, T S and Edmond, J M and Lawrence, J R and Casey, J F and Thompson, G and Humphris, S E and Rona, P A and Karson, J A}
}
