Conference Papers
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Geochemical data for produced waters from conventional and unconventional oil and gas wells: Results from Colorado, USA Geochemical data for produced waters from conventional and unconventional oil and gas wells: Results from Colorado, USA
Geochemical data for more than 120,000 oil and natural gas wells from the major sedimentary basins in the USA are listed in the USGS National Produced Waters Geochemical Database [1]. In this summary, we report and discuss the geochemical data on produced waters obtained from published literature and the Colorado Oil and Gas Conservation Commission (COGCC) from close to 4,000 new oil and...
Authors
Yousif Kharaka, Kathleen Gans, James Thordsen, Madalyn S. Blondes, Mark A Engle
A 20-year record of water chemistry in an alpine setting, Mount Emmons, Colorado, USA A 20-year record of water chemistry in an alpine setting, Mount Emmons, Colorado, USA
From 1997 to the present, the U.S. Geological Survey and other agencies have been collecting water samples for chemical analyses on Mount Emmons in central Colorado, USA. The geology of Mount Emmons is dominated by Upper Cretaceous to Paleogene sediments of marine to continental origin, with felsic intrusive rocks interrupting the sedimentary block. Extensive sulphide-rich alteration...
Authors
Richard Wanty, Andrew H. Manning, Michaela Johnson, Philip Verplanck
Integrating structure from motion, numerical modelling and field measurements to understand carbonate sediment transport in coral reef canopies Integrating structure from motion, numerical modelling and field measurements to understand carbonate sediment transport in coral reef canopies
Reef canopies are complex and extremely variable across a range of spatial scales. This variability affects the velocity above as well as within the canopy, and directly impacts the transport of sediment along the bed as well as suspended in the water column. How a canopy affects the transport of sediment is important to understand and predict changes in the position of the adjacent...
Authors
Andrew Pomeroy, Curt D. Storlazzi, Kurt J. Rosenberger, Gerry Hatcher, Jonathan A. Warrick
The influence of sea level on incident and infragravity wave-driven sediment dynamics across a fringing coral reef The influence of sea level on incident and infragravity wave-driven sediment dynamics across a fringing coral reef
Coral reefs generate significant volumes of carbonate sediment that becomes the primary source of beach material along many low-latitude shorelines that protect hundreds of millions of people globally. Despite this fact, there is little understanding of the specific processes that transport the carbonate sediment produced on the outer portions of coral reefs to the shoreline, let alone...
Authors
Curt D. Storlazzi, Olivia Cheriton, Kurt J. Rosenberger, Andrew Pomeroy, Ryan J. Lowe
Measuring settling velocity in a strongly tidal estuary Measuring settling velocity in a strongly tidal estuary
Predicting sediment transport in estuarine systems requires understanding sediment settling velocity, its range of fluctuations, and the shortcomings of the tools to measure it. Previous studies have used Laser In-Situ Scattering and Transmissometry (LISST) instruments to measure particle size and Acoustic Doppler Velocimeters (ADV) to return estimates of settling velocity. We deployed...
Authors
Rachel Allen, Jessica R. Lacy, Evan A Variano
Controls on sediment transport over coral reefs off southwest Puerto Rico: Seasonal patterns and Hurricane Maria Controls on sediment transport over coral reefs off southwest Puerto Rico: Seasonal patterns and Hurricane Maria
Guánica Bay in southwest Puerto Rico is highly turbid and has some of the highest PCB concentrations in the USA. To investigate how and to what extent the bay waters influence coral reef ecosystem health along the coastline, 6 months of hydrodynamic data were collected at 8 sites on the insular shelf. Bed shear stresses were primarily driven by waves and were weakest at the site closest...
Authors
Olivia Cheriton, Curt D. Storlazzi, Kurt J. Rosenberger, Clark Sherman