J
Jeffrey C. Alt
Researcher at University of Michigan
Publications - 129
Citations - 10000
Jeffrey C. Alt is an academic researcher from University of Michigan. The author has contributed to research in topics: Oceanic crust & Hydrothermal circulation. The author has an hindex of 53, co-authored 129 publications receiving 9189 citations. Previous affiliations of Jeffrey C. Alt include Ocean Drilling Program & University of Miami.
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Journal ArticleDOI
Hydrothermal alteration of a 1 km section through the upper oceanic crust, Deep Sea Drilling Project Hole 504B: Mineralogy, chemistry and evolution of seawater‐basalt interactions
TL;DR: The Deep Sea Drilling Project (DSDP) hole 504B was the first hole to pass through the transition from pillow basalts altered at low temperatures into hydrothermally metamorphosed sheeted dikes as mentioned in this paper.
Journal ArticleDOI
A long in situ section of the lower ocean crust: results of {ODP} Leg 176 drilling at the Southwest Indian Ridge
Henry J. B. Dick,James H. Natland,Jeffrey C. Alt,Wolfgang Bach,Daniel Bideau,Jeffrey S. Gee,Sarah Haggas,Jan Gh Hertogen,Greg Hirth,Paul Martin Holm,Benoit Ildefonse,Gerardo J. Iturrino,Barbara E. John,Deborah S. Kelley,E. Kikawa,Andrew Kingdon,Petrus J. Leroux,Jinichiro Maeda,Peter S. Meyer,D Jay Miller,H. Richard Naslund,Yaoling Niu,Paul T. Robinson,Jonathan E. Snow,Ralph A. Stephen,Patrick Trimby,Horst Ulrich Worm,Aaron Yoshinobu +27 more
TL;DR: Ocean Drilling Program Leg 176 deepened Hole 735B in gabbroic lower ocean crust by 1 km to 1.5 km as discussed by the authors, with evidence for two principal and many secondary intrusive events.
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The uptake of carbon during alteration of ocean crust
TL;DR: In this paper, the authors show that the ocean crust is a sink for carbon, with an annual storage rate of 3.4 × 1012 mol C y−1, in close agreement with a previous estimate by Staudigel et al.
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The internal structure of an active sea-floor massive sulphide deposit
Susan E. Humphris,Peter M. Herzig,D.J. Miller,Jeffrey C. Alt,Keir Becker,Dennis Brown,Gerhard Brügmann,Hitoshi Chiba,Yves Fouquet,JB Gemmell,Gilles Guerin,Mark D. Hannington,Nils G. Holm,J. Honnorez,G. J. Iturrino,R. Knott,R. Ludwig,K. Nakamura,Sven Petersen,Anna-Louise Reysenbach,Peter A. Rona,Scott Smith,A. A. Sturz,Margaret K. Tivey,Xixi Zhao +24 more
TL;DR: In this article, the authors report results obtained from drilling a series of holes into an actively forming sulphide deposit on the Mid-Atlantic Ridge, and demonstrate the importance of anhydrite in the growth of massive sulphide deposits, despite its absence in those preserved on land.
Journal ArticleDOI
Lithium and lithium isotope profiles through the upper oceanic crust: a study of seawater–basalt exchange at ODP Sites 504B and 896A
TL;DR: The Ocean Drilling Program (ODP) Hole 504B near the Costa Rica Rift is the deepest hole drilled in the ocean crust, penetrating a volcanic section, a transition zone and a sheeted dike complex as discussed by the authors.