William Ridley (Former Employee)
Science and Products
Filter Total Items: 38
Development of sulfide calibration standards for the laser ablation inductively-coupled plasma mass spectrometry technique Development of sulfide calibration standards for the laser ablation inductively-coupled plasma mass spectrometry technique
The requirements of standard materials for LA-ICP-MS analysis have been difficult to meet for the determination of trace elements in sulfides. We describe a method for the production of synthetic sulfides by precipitation from solution. The method is detailed by the production of approximately 200 g of a material, PS-1, with a suite of chalcophilic trace elements in an Fe-Zn-Cu-S matrix
Authors
S. A. Wilson, W.I. Ridley, A.E. Koenig
Using submarine lava pillars to record mid-ocean ridge eruption dynamics Using submarine lava pillars to record mid-ocean ridge eruption dynamics
Submarine lava pillars are hollow, glass-lined, basaltic cylinders that occur at the axis of the mid-ocean ridge, and within the summit calderas of some seamounts. Typically, pillars are ~1-20 m tall and 0.25-2.0 m in diameter, with subhorizontal to horizontal glassy selvages on their exterior walls. Lava pillars form gradually during a single eruption, and are composed of lava emplaced...
Authors
Tracy Gregg, Daniel J. Fornari, Michael R. Perfit, W. Ian Ridley, Mark D. Kurz
Low-temperature alteration of dredged volcanics from the Southern Chile Ridge: Additional information about early stages of seafloor weathering Low-temperature alteration of dredged volcanics from the Southern Chile Ridge: Additional information about early stages of seafloor weathering
A suite of submarine volcanic rocks from the Southern Chile Ridge has been examined in order to investigate the early stages of low temperature alteration. Alteration in these samples proceeded as follows: (1) Fe-staining on sample surface and along fractures, (2) filling of vesicles with secondary material, (3) breakdown of glassy matrix, (4) breakdown of microcrystalline matrix, and (5...
Authors
T. Pichler, W.I. Ridley, E. Nelson
Recent volcanism in the Siqueiros transform fault: Picritic basalts and implications for MORB magma genesis Recent volcanism in the Siqueiros transform fault: Picritic basalts and implications for MORB magma genesis
Small constructional volcanic landforms and very fresh-looking lava flows are present along one of the inferred active strike-slip faults that connect two small spreading centers (A and B) in the western portion of the Siqueiros transform domain. The most primitive lavas (picritic and olivine-phyric basalts), exclusively recovered from the young-looking flows within the A-B strike-slip...
Authors
M.R. Perfit, D.J. Fornari, W.I. Ridley, P.D. Kirk, John F. Casey, K.A. Kastens, J.R. Reynolds, M. Edwards, D. Desonie, R. Shuster, S. Paradis
Hydrothermal alteration in oceanic ridge volcanics: A detailed study at the Galapagos Fossil Hydrothermal Field Hydrothermal alteration in oceanic ridge volcanics: A detailed study at the Galapagos Fossil Hydrothermal Field
The Galapagos Fossil Hydrothermal Field is composed of altered oceanic crust and extinct hydrothermal vents within the eastern Galapagos Rift between 85°49′W and 85°55′W. The discharge zone of the hydrothermal system is revealed along scarps, thus providing an opportunity to examine the uppermost mineralized, and highly altered interior parts of the crust. Altered rocks collected in situ...
Authors
W.I. Ridley, M.R. Perfit, I.R. Josnasson, M.F. Smith
Science and Products
Filter Total Items: 38
Development of sulfide calibration standards for the laser ablation inductively-coupled plasma mass spectrometry technique Development of sulfide calibration standards for the laser ablation inductively-coupled plasma mass spectrometry technique
The requirements of standard materials for LA-ICP-MS analysis have been difficult to meet for the determination of trace elements in sulfides. We describe a method for the production of synthetic sulfides by precipitation from solution. The method is detailed by the production of approximately 200 g of a material, PS-1, with a suite of chalcophilic trace elements in an Fe-Zn-Cu-S matrix
Authors
S. A. Wilson, W.I. Ridley, A.E. Koenig
Using submarine lava pillars to record mid-ocean ridge eruption dynamics Using submarine lava pillars to record mid-ocean ridge eruption dynamics
Submarine lava pillars are hollow, glass-lined, basaltic cylinders that occur at the axis of the mid-ocean ridge, and within the summit calderas of some seamounts. Typically, pillars are ~1-20 m tall and 0.25-2.0 m in diameter, with subhorizontal to horizontal glassy selvages on their exterior walls. Lava pillars form gradually during a single eruption, and are composed of lava emplaced...
Authors
Tracy Gregg, Daniel J. Fornari, Michael R. Perfit, W. Ian Ridley, Mark D. Kurz
Low-temperature alteration of dredged volcanics from the Southern Chile Ridge: Additional information about early stages of seafloor weathering Low-temperature alteration of dredged volcanics from the Southern Chile Ridge: Additional information about early stages of seafloor weathering
A suite of submarine volcanic rocks from the Southern Chile Ridge has been examined in order to investigate the early stages of low temperature alteration. Alteration in these samples proceeded as follows: (1) Fe-staining on sample surface and along fractures, (2) filling of vesicles with secondary material, (3) breakdown of glassy matrix, (4) breakdown of microcrystalline matrix, and (5...
Authors
T. Pichler, W.I. Ridley, E. Nelson
Recent volcanism in the Siqueiros transform fault: Picritic basalts and implications for MORB magma genesis Recent volcanism in the Siqueiros transform fault: Picritic basalts and implications for MORB magma genesis
Small constructional volcanic landforms and very fresh-looking lava flows are present along one of the inferred active strike-slip faults that connect two small spreading centers (A and B) in the western portion of the Siqueiros transform domain. The most primitive lavas (picritic and olivine-phyric basalts), exclusively recovered from the young-looking flows within the A-B strike-slip...
Authors
M.R. Perfit, D.J. Fornari, W.I. Ridley, P.D. Kirk, John F. Casey, K.A. Kastens, J.R. Reynolds, M. Edwards, D. Desonie, R. Shuster, S. Paradis
Hydrothermal alteration in oceanic ridge volcanics: A detailed study at the Galapagos Fossil Hydrothermal Field Hydrothermal alteration in oceanic ridge volcanics: A detailed study at the Galapagos Fossil Hydrothermal Field
The Galapagos Fossil Hydrothermal Field is composed of altered oceanic crust and extinct hydrothermal vents within the eastern Galapagos Rift between 85°49′W and 85°55′W. The discharge zone of the hydrothermal system is revealed along scarps, thus providing an opportunity to examine the uppermost mineralized, and highly altered interior parts of the crust. Altered rocks collected in situ...
Authors
W.I. Ridley, M.R. Perfit, I.R. Josnasson, M.F. Smith
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