Statistical summaries of simulated groundwater residence times for the 10 regional aquifers of the Northern Atlantic Coastal Plain aquifer system, at a 1 square-mile grid resolution

Groundwater residence times were simulated for the major regional aquifers of the Northern Atlantic Coastal Plain aquifer system from New York to North Carolina using particle tracking in a regional groundwater flow model. Millions of particles were distributed throughout the aquifers of the North Atlantic Coastal Plain in a MODFLOW model with a volume-weighted algorithm, then tracked backwards using MODPATH6 (Pollock, 2012) until termination of their paths at their sources of origin, usually the simulated water table. Particles were tracked under simulated transient hydrologic conditions from the reference time of January 1, 2018 backwards to 1900, then under simulated steady-state conditions prior to 1900 until...

Categories: Data; Tags: Delaware, Hydrology, Maryland, New Jersey, New York, All tags... North Carolina, Northern Atlantic Coastal Plain, USGS Science Data Catalog (SDC), Virginia, Water Quality, Water Resources, age estimation methods, aquifers, environment, groundwater flow, groundwater quality, inlandWaters, Fewer tags

Great Lakes Research Vessel Operations 1958-2018: Gillnet. (ver. 3.0, April 2019)

All gillnet data represented here expand upon vessel operations (OP table) data, all of which are collected by the United States Geological Survey, Great Lakes Science Center and its partners. The Gillnet Tables contain data collected from the research vessel deploying various gear used for gillnet data collection. The database uses sample_type to indicate the gear deployed. The tables relating to Gillnet are: GN_Annulus.csv, GN_Catch.csv, GN_Effort.csv, GN_Fish.csv, GN_L, GN_LF.csv, GN_OP.csv, GN_Prey.csv, GN_Stomach.csv, LMMB_Fish_Prey.csv, and LMMB_Invert_Prey.csv Data Quality: Note that the following data release is a snapshot of the database at the time of release. Some data quality checks are still being...

Categories: Data; Tags: Alewife, Bathythermograph, Benthos, Bloater, Cisco, All tags... Deepwater, Deepwater Sculpin, Detroit River, Emerald Shiner, Gillnet, Habitat, Hydroacoustic, Ichthyoplankton, Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake Saint Clair, Lake Superior, Lake Trout, Lake Trout Population Dynamics, Laurentian Great Lakes, Mensuration, Mysis, Prey fish, Prey fish population dynamics, Rainbow Smelt, Round Goby, Saint Clair River, Sea Lamprey, Slimy Sculpin, Spoonhead Sculpin, Trawl, Walleye, White Perch, Yellow Perch, Zebra Mussel, Zooplankton, acoustics, age estimation methods, age structure, biogeography, biological sampling, biomass, biota, environment, fall forage fish, field sampling, fishery management, food web, freshwater fishes, geospatial datasets, gillnets, inlandWaters, invasive species, population dynamics, surface water temperature, time series datasets, transect sampling, trawl nets, trawling, water temperature, Fewer tags

Data Release for Luminescence: Butler Cave, Burnsville Cove, Bath and Highland Counties, VA

Burnsville Cove in Bath and Highland Counties (Virginia, USA) is a karst region in the Valley and Ridge Province of the Appalachian Mountains. The region contains many caves in Silurian to Devonian limestone, and is well suited for examining geologic controls on cave location and cave passage morphology. In Burnsville Cove, many caves are located preferentially near the axes of synclines and anticlines. For example, Butler Cave is an elongate cave where the trunk channel follows the axis of Sinking Creek syncline and most of the side passages follow joints at right angles to the syncline axis. In contrast, the Water Sinks Subway Cave, Owl Cave, and Helictite Cave have abundant maze patterns, and are located near...

Categories: Data, Data Release - In Progress; Tags: Bath County, Burnsville Cove, Butler Cave, Geomorphology, Highland County, All tags... Sedimentology, USGS Science Data Catalog (SDC), Virginia, age estimation methods, geochronology, luminescence dating, optically stimulated luminescence, radiation dosimetry, utilitiesCommunication, Fewer tags

Great Lakes Research Vessel Operations 1958-2018: Mensuration. (ver. 3.0, April 2019)

All mensuration data represented here expand upon vessel operations (OP table) data, all of which are collected by the United States Geological Survey, Great Lakes Science Center and its partners. The Mensuration Tables contain data collected from the research vessel deploying various gear used for mensuration data collection. The database uses sample_type to indicate the gear deployed. The tables relating to Mensuration are: Mensuration.csv, MS_head_rope_depth.csv, MS_FOOT_ROPE_DEPTH, MS_Primary.csv, MS_Temperature.csv, and MS_Wingspread.csv Data Quality: Note that the following data release is a snapshot of the database at the time of release. Some data quality checks are still being undertaken after the time...

Categories: Data; Tags: Alewife, Bathythermograph, Benthos, Bloater, Cisco, All tags... Deepwater, Deepwater Sculpin, Detroit River, Emerald Shiner, Gillnet, Habitat, Hydroacoustic, Ichthyoplankton, Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake Saint Clair, Lake Superior, Lake Trout, Lake Trout Population Dynamics, Laurentian Great Lakes, Mensuration, Mysis, Prey fish, Prey fish population dynamics, Rainbow Smelt, Round Goby, Saint Clair River, Sea Lamprey, Slimy Sculpin, Spoonhead Sculpin, Trawl, Walleye, White Perch, Yellow Perch, Zebra Mussel, Zooplankton, acoustics, age estimation methods, age structure, biogeography, biological sampling, biomass, biota, environment, fall forage fish, field sampling, fishery management, food web, freshwater fishes, geospatial datasets, gillnets, inlandWaters, invasive species, population dynamics, surface water temperature, time series datasets, transect sampling, trawl nets, trawling, water temperature, Fewer tags

DATA RELEASE Part 2: Optical luminescence dating of Bradley Lake, Oregon, tsunami deposits, analytical data for: A maximum rupture model for the central and southern Cascadia subduction zone—reassessing ages for coastal evidence of megathrust earthquakes and tsunamis

The following report summarizes the dating results from Bradley Lake, Oregon. Within this report, we detail the methodology used by the USGS Luminescence Geochronology Laboratory to obtain ages including sample preparation methods, luminescence measurement, equivalent dose determination, and datingrelated calculations. We recommend that this report be included as the supplementary material for any publication(s) that use the ages within this report. This version supersedes all previous age estimates and reports.

Categories: Data; Tags: Bradley Lake, Geomorphology, North Olympic Fault Zone, Oregon, Sadie Creek, All tags... Seismology, Southern Cascadia Subduction Zone, USGS Science Data Catalog (SDC), age estimation methods, geochronology, luminescence dating, optically-stimulated luminescence, radiation dosimetry, Fewer tags

Optically Stimulated Luminescence (OSL) data and ages for selected Native American Sacred Ceremonial Stone Landscape features--Final Project Report Submitted to the Narragansett Tribal Historic Preservation Trust

Stone rows, enclosures, structures and chambers can be found in the landscapes of Massachusetts and Rhode Island. Structures similar to those shown in the cover photo are documented elsewhere. The age, cultural affiliation, and purpose of these stone structures--which are found in a variety of forms, such as piles arranged in spatial configurations across landscapes, shapes suggesting animal effigies, platforms and chambers--have been the subject of much debate. Some have argued they are remnants of colonial agricultural and storage practices; others that they are prehistoric Native American ceremonial structures. Ascertaining the time periods of their creation had previously been impossible. We felt that optically...

Categories: Data; Tags: Hopkinson, Leverett, Massachusetts, New England, Pratt Hill, All tags... USGS Science Data Catalog (SDC), age estimation methods, archeology, geochronology, luminescence dating, optically-stimulated luminescence, radiation dosimetry, Fewer tags

Data Release for Luminescence: Geologic map of Scoggins Dam, Henry Hagg Lake, and the Scoggins Valley area, Washington County, Oregon

The Bureau of Reclamation's Scoggins Dam lies within the Gales Creek fault zone southwest of Hillsboro, Oregon. Recent geologic mapping shows the dam to overlie a potentially active strand of the fault. This report describes the geology of the dam in detail and confirms that the dam overlies a strand of the Gales Creek fault. The report documents small faults in the reservoir and off the north end of the dam along the Parsons Creek strand of the fault. The report further documents the geology of an alternative dam site downstream of the existing dam.

Categories: Data; Tags: Gales Creek Fault, Geochemistry, Geomorphology, Henry Hagg Lake, Hydrology, All tags... Northwestern Oregon, Scoggins Dam, Scoggins Valley, Seismology, USGS Science Data Catalog (SDC), Washington County, Oregon, age estimation methods, biota, geochronology, luminescence dating, optically-stimulated luminescence, radiation dosimetry, Fewer tags

Data Release for Luminescence: Mid to Late Quaternary Geomorphic and Paleoseismic Event History, Cheraw Fault, Colorado

Despite its subdued expression and isolated location within the Great Plains of southeastern Colorado, the 80-km-long Cheraw fault may be one of the most active faults in North America east of the Southern Rocky Mountains. We present geomorphic analyses, geochronology, and paleoseismic trenching data to 1) document the rupture history of the ~45-km-long southwestern section of the Cheraw fault over the past ~19 ka, and 2) evaluate slip-rate changes for the entire fault over the past ~200 ka. Results from new trenches excavated at the Old Ranch site show evidence of four surface-rupture events since ~19 ka, each with an average vertical displacement of 0.75 m. An additional event is likely only slightly older than...

Categories: Data; Tags: Arkansas River, Basin and Range, Cheraw Fault, Eastern Colorado, Geomorphology, All tags... Great Plains, Seismology, USGS Science Data Catalog (SDC), age estimation methods, biota, geochronology, luminescence dating, optically-stimulated luminescence, radiation dosimetry, Fewer tags

Data Release for Luminescence: Floodplain Sediment Storage Timescales of the Laterally Confined Meandering Powder River, U.S.A

The following report summarizes the dating results from the. Within this report, we detail the methodology used to determine the storage time distribution for a 17 km length of Powder River in Montana, U.S.A. by the age distribution of eroded sediment. This data is used by the USGS Luminescence Geochronology Laboratory to obtain ages including sample preparation methods, luminescence measurement, equivalent dose determination, and dating-related calculations. We recommend that this report be included as the supplementary material for any publication(s) that use the ages within this report. This version supersedes all previous age estimates and reports.

Categories: Data; Tags: Fort Union Formation, Geomorphology, Kaycee Terrace, Lightening Terrace, Montana, All tags... Moorcroft Terrace, Powder River, Sedimentology, Stratigraphy, USGS Science Data Catalog (SDC), age estimation methods, geochronology, luminescence dating, optically-stimulated luminescence, radiation dosimetry, utilitiesCommunication, Fewer tags

Geochronological data for the Airport East trench site, West Valley fault zone, Salt Lake County, Utah

This data release includes geochronological data for the Airport East trench site (40.795359°, -111.950438°) on the Taylorsville fault of the West Valley fault zone (WVFZ). The WVFZ comprises intrabasin faults in the hanging wall of the Wasatch fault zone in the northern part of Salt Lake Valley, Utah. Samples for radiocarbon and luminescence dating were collected from two paleoseismic trenches in August–September 2015. Laboratory data include four optically stimulated luminescence ages and 14 radiocarbon ages for charcoal extracted from bulk sediment samples. This database has been approved for release by the U.S. Geological Survey (USGS). Although this database has been subjected to rigorous review and is substantially...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geomorphology, Salt Lake City, Salt Lake Valley, Sedimentology, Seismology, All tags... Structural Geology, USGS Science Data Catalog (SDC), Utah, age estimation methods, carbon-14 analysis, geochronology, luminescence dating, Fewer tags

St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database

This database contains a comprehensive inventory of geologic (coral, coral reef, limestone, and sediment) cores and samples collected, analyzed, published, and/or archived by, or in collaboration with, the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC). The SPCMSC Geologic Core and Sample Database includes geologic cores and samples collected beginning in the 1970s to present day, from study sites across the world. This database can be accessed through the CoreViewer 3.0 ArcOnline web mapping application, linked below. A copy of the data can also be downloaded from the web mapping application and the metadata is accessible through a link in the header of the application, as...

Categories: Collection, Data; Tags: Alabama, Atlantic Ocean, Bahamas, Belize, Biological Collection, All tags... CTD measurement, Caribbean Sea, China, Florida, Geological Collection, Georgia, Gulf of Mexico, Honduras, Louisiana, Marshall Islands, Maryland, Mexico, Mississippi, Navassa Island, New Jersey, New Mexico, New York, Pacific Ocean, Phillippines, Puerto Rico, Texas, U.S. Virgin Islands, United States, Virginia, Washington, age estimation methods, atomic emission spectroscopy, augering, biota, box coring, bulk density, carbon isotope analysis, carbon-14 analysis, chemical analysis, contamination and pollution, coral, core analysis, cores, drilling and coring, environmentfaunal and floral census (microscopic), field sampling, geolocation measurement, geology, geoscientificInformation, grab sampling, grain-size analysis, information technology methods, isotopic analysis, laboratory method, luminescence dating, magnetic susceptibility, marine geology, mass spectroscopy, ndc_collection, oceans, paleomagnetic analysis, permeability, photography, piston coring, porosity, protists, push coring, radiometric dating, rock, rotary drilling, salinity, sample repositories, samples, sea surface temperature, sediment, slight stable isotope analysis, soil sciences, stratigraphy, subsampling, tomography, vibracoring, water chemistry, water quality, x-ray diffraction, x-ray fluorescence, Fewer tags

Data Release for Luminescence: Surficial Mapping of the Central Panamint Valley, Inyo County, California

Several historic, multi-fault ruptures in the Eastern California Shear Zone (ECSZ) reinforce the need to understand how this rupture style contributes to seismic hazard in complex and diffuse fault zones. Several historic earthquakes in the ECSZ, the 1992 Landers, the 1999 Hector Mine, and the 2019 Ridgecrest rupture sequence, involved complex and multi-fault rupture. However, paleoseismic evidence of multi-fault ruptures in the ECSZ is poorly resolved in the rock record. Here I investigate paleoseismic evidence for complex rupture in Panamint Valley, located ~50 km northeast of the 2019 Ridgecrest ruptures. Late Holocene scarps in the 10 km-wide transtensional relay between the Ash Hill and Panamint Valley faults...

Categories: Data; Tags: Ash Hill, Eastern California Shear Zone, Geomorphology, Panamint Valley, Southern California, All tags... Southern Walker Lane, USGS Science Data Catalog (SDC), age estimation methods, geochronology, luminescence dating, optically stimulated luminescence, radiation dosimetry, Fewer tags

Data Release for Luminescence: Construction and modification of debris-flow alluvial fans as captured in the geomorphic and sedimentary record: examples from the western Sangre de Cristo Mountains, south-central Colorado

The following report summarizes the dating results from the San Luis Valley-Pioneer Fan 2017-2019 dating project. Within this report, we detail the methodology used by the USGS Luminescence Geochronology Laboratory to obtain ages including sample preparation methods, luminescence measurement, equivalent dose determination, and dating-related calculations. We recommend that this report be included as the supplementary material for any publication(s) that use the ages within this report.

Categories: Data; Tags: Geomorphology, Pioneer Fan, San Luis Valley, Sangre de Cristo Mountains, Sedimentology, All tags... South-Central Colorado, USGS Science Data Catalog (SDC), Western Range, age estimation methods, biota, geochronology, luminescence dating, optically-stimulated luminescence, radiation dosimetry, Fewer tags

Development of an age estimation method for Grass Carp from North America

The development of a reliable method of age estimation for Grass Carp is necessary for the successful management of this invasive species. Multiple federal and state agencies with assistance from commercial fishers collected adult Grass Carp from 2012 to 2018. Ossified parts were collected from these fish, and age estimates from them were compared to develop an age estimation method. Here we provide the data used in that effort.

Categories: Data; Tags: Allegheny River, Ashtabula River, Berlin Lake, Blackwater, Calumet River, All tags... Cuyahoga River, Great Lakes, Illinois, Jungbluth Ditch, Lake Erie, Lake Gibson, Lake Michigan, Lake Ontario, Lamine, Little Calumet River, Mahoning River, Maumee River, Milwaukee River, Minnesota River, Mississippi River, Missouri, Muskingum River, Ohio, Ontario, Pennsylvania, Sac, Sandusky River, Sugar Creek, USGS Science Data Catalog (SDC), Upper Mississippi River, Wisconsin, age estimation methods, biota, freshwater ecosystems, invasive species, none, Fewer tags

Great Lakes Research Vessel Catch (RVCAT) Database

The Great Lakes Research Vessel Catch (RVCAT) database is managed at the Great Lakes Science Center (GLSC). RVCAT has been used as the primary data collection tool aboard the GLSC’s research vessel operations across the Great Lakes. Content: The data set has been collected on various vessel operations on all the Great Lakes and select connecting waterways between the years 1930-2021. Data collection begins in early spring and ends in late fall. Each vessel operation was completed for a specific purpose, or target mission. Data Structure: These data are collected at the GLSC in the RVCAT Oracle database. This database has been broken down into comma separated value (csv) spreadsheets in order to facilitate greater...

Tags: Alewife, Bathythermograph, Benthos, Bloater, Cisco, All tags... Deepwater, Deepwater Sculpin, Detroit River, Emerald Shiner, Gillnet, Habitat, Hydroacoustic, Ichthyoplankton, Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake Saint Clair, Lake Superior, Lake Trout, Lake Trout Population Dynamics, Laurentian Great Lakes, Mensuration, Mysis, Prey fish, Prey fish population dynamics, Rainbow Smelt, Round Goby, Saint Clair River, Sea Lamprey, Slimy Sculpin, Spoonhead Sculpin, Trawl, Walleye, White Perch, Yellow Perch, Zebra Mussel, Zooplankton, acoustics, age estimation methods, age structure, biogeography, biological sampling, biomass, biota, environment, fall forage fish, field sampling, fishery management, food web, freshwater fishes, geospatial datasets, gillnets, inlandWaters, invasive species, population dynamics, surface water temperature, time series datasets, transect sampling, trawl nets, trawling, water temperature, Fewer tags

Great Lakes Research Vessel Operations 1958-2018: OP. (ver. 3.0, April 2019)

These data have been collected on various vessel operations on the Great Lakes and select connecting waterways. This vessel operations data set is part of and connected to a larger database of Great Lakes research that includes trawl and gillnet catch data, sample information of fish species caught, as well as effort applied, operation conditions, and location details. The larger database also contains data on hydroacoustics, ichthyoplankton, zooplankton, zebra mussel, and benthos samples collected. Multiple operations were conducted on all Great Lakes each year (1958-2016) beginning in early spring and ending in late fall. Each vessel operation was completed for a specific purpose, or target mission, which are...

Categories: Data; Tags: Alewife, Bathythermograph, Benthos, Bloater, Cisco, All tags... Deepwater, Deepwater Sculpin, Detroit River, Emerald Shiner, Gillnet, Habitat, Hydroacoustic, Ichthyoplankton, Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake Saint Clair, Lake Superior, Lake Trout, Lake Trout Population Dynamics, Laurentian Great Lakes, Mensuration, Mysis, Prey fish, Prey fish population dynamics, Rainbow Smelt, Round Goby, Saint Clair River, Sea Lamprey, Slimy Sculpin, Spoonhead Sculpin, Trawl, Walleye, White Perch, Yellow Perch, Zebra Mussel, Zooplankton, acoustics, age estimation methods, age structure, biogeography, biological sampling, biomass, biota, environment, fall forage fish, field sampling, fishery management, food web, freshwater fishes, geospatial datasets, gillnets, inlandWaters, invasive species, population dynamics, surface water temperature, time series datasets, transect sampling, trawl nets, trawling, water temperature, Fewer tags

Northern Sea Otter Aging Criteria: data

Measurement of skull ossification patterns is a standard method for aging various mammalian species and has been used to age Russian, Californian, and Alaskan sea otter populations. Cementum annuli counts have also been verified as an accurate aging method for the Alaskan sea otter population. In this study, cementum annuli count results and skull ossification patterns were compared as methods for aging the northern sea otter (Enhydra lutris kenyoni) population in Washington State. Significant agreement was found between the two methods suggesting that either method could be used to age the Washington population of otters. This study also found that ossification of the squamosal-jugal suture at the ventral glenoid...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Age determination, Clallam, Grays Harbor, Jefferson, Pacific, All tags... USGS Science Data Catalog (SDC), Washington, age estimation methods, cementum annuli, dental assessment, morphometry, skull ossification, tooth eruption, tooth wear, Fewer tags

St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database

This database contains a comprehensive inventory of geologic (coral, coral reef, limestone, and sediment) cores and samples collected, analyzed, published, and/or archived by, or in collaboration with, the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC). The SPCMSC Geologic Core and Sample Database includes geologic cores and samples collected beginning in the 1970s to present day, from study sites across the world. This database can be accessed through the CoreViewer 3.0 ArcOnline web mapping application, linked below. A copy of the data can also be downloaded from the web mapping application and the metadata is accessible through a link in the header of the application, as...

Types: Application, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Atlantic Ocean, Bahamas, Belize, Brazil, All tags... CTD measurement, Caribbean Sea, China, Florida, Georgia, Gulf of Mexico, Honduras, Louisiana, Marshall Islands, Maryland, Mexico, Mississippi, Navassa Island, New Jersey, New Mexico, New York, Pacific Ocean, Philippines, Puerto Rico, Texas, Turks and Caicos Islands, U.S. Virgin Islands, United States, Virginia, Washington, age estimation methods, atomic emission spectroscopy, augering, biota, box coring, bulk density, carbon isotope analysis, carbon-14 analysis, chemical analysis, contamination and pollution, coral, core analysis, cores, drilling and coring, environment, faunal and floral census (microscopic), field sampling, geolocation measurement, geology, geoscientificInformation, grab sampling, grain-size analysis, information technology methods, isotopic analysis, laboratory methods, light stable isotope analysis, luminescence dating, magnetic susceptibility, marine geology, mass spectroscopy, oceans, paleomagnetic analysis, permeability, photography, piston coring, porosity, protists, push coring, radiometric dating, rock, rotary drilling, salinity, sample repositories, samples, sea surface temperature, sediment, soil sciences, stratigraphy, subsampling, tomography, vibracoring, water chemistry, water quality, x-ray diffraction, x-ray fluorescence, Fewer tags

Great Lakes Research Vessel Operations 1958-2018. (ver. 3.0, April 2019)

The Great Lakes Research Vessel Operations data release is taken from the Research Vessel Catch (RVCAT) database curated at the Great Lakes Science Center (GLSC). RVCAT has been used as the primary data collection tool aboard the GLSC’s research vessel operations. Content: The data set has been collected on various vessel operations on all the Great Lakes and select connecting waterways between the years 1958-2018. Data collection begins in early spring and ends in late fall. Each vessel operation was completed for a specific purpose, or target mission, which are enumerated in this data set. In addition to vessel operations data, RVCAT collects trawl and gillnet catch data, sample information of fish species caught,...

Types: Citation; Tags: Alewife, Bathythermograph, Benthos, Bloater, Cisco, All tags... Deepwater, Deepwater Sculpin, Detroit River, Emerald Shiner, Gillnet, Habitat, Hydroacoustic, Ichthyoplankton, Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake Saint Clair, Lake Superior, Lake Trout, Lake Trout Population Dynamics, Laurentian Great Lakes, Mensuration, Mysis, Prey fish, Prey fish population dynamics, Rainbow Smelt, Round Goby, Saint Clair River, Sea Lamprey, Slimy Sculpin, Spoonhead Sculpin, Trawl, USGS Science Data Catalog (SDC), Walleye, White Perch, Yellow Perch, Zebra Mussel, Zooplankton, acoustics, age estimation methods, age structure, biogeography, biological sampling, biomass, biota, environment, fall forage fish, field sampling, fishery management, food web, freshwater fishes, geospatial datasets, gillnets, inlandWaters, invasive species, population dynamics, surface water temperature, time series datasets, transect sampling, trawl nets, trawling, water temperature, Fewer tags

Geologic setting and geomorphic history of the La Botica area, south-central Colorado

La Botica is positioned on a topographic bench sharply inset into the gentle eastern slope of the high San Juan Mountains and perched ~70-80 meters above La Jara Creek (fig. 1), a tributary to the Rio Grande. Quaternary surface processes have modified the Tertiary bedrock deposits that underlie La Botica to shape the physical environment. Bedrock deposits consist of Oligocene to Pliocene volcanic and sedimentary deposits related to the Rio Grande rift and the San Juan volcanic locus of the Southern Rocky Mountains volcanic field. Bedrock deposits are mildly deformed by normal faulting and eastward tilting related to the onset of extensional deformation in the Oligocene and formation of the San Luis Basin. Bedrock...

Categories: Data; Tags: La Botica, La Jara Creek, Rio Grande, San Juan Mountains, South-Central Colorado, All tags... USGS Science Data Catalog (SDC), age estimation methods, geochronology, luminescence dating, optically-stimulated luminescence, radiation dosimetry, Fewer tags