Field Activity 2017-609-FA

Identifier 2017-609-FA
Also known as Lumahai, Ukoa, Kahana February 2017
Purpose To collect sediment cores in coastal wetland environments that may record evidence of historic and pre-historic tsunamis.
Location Kauaʻi, Oʻahu
Summary data submitted to FAD by Seanpaul La Selle on 4/21/2017; kmls and photos. 112 sites, 29 cores samples in PVC sleeves, 118 samples in plastic bags, 1336 photos
Info derived Deposit thickness, grain size, organic material for radiocarbon dating, CT scans, XRF
Comments Entries for this field activity are based on entries from Field Activity 2017-603-FA
Projects
Platform
on foot
survey conducted on foot
Vehicles
None
Itinerary
Start Lihue, HI 2017-02-14
End Honolulu, HI 2017-02-23
Days in the field 9
Bounds
West -160.48828125
East -157.5032552
North 22.49606365
South 21.13712962

Personnel

Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators Bruce M Richmond
Crew members
Information specialist(s)
SeanPaul M La Selle
Specialist, Information

Data types and categories

Data category: Imagery, Location-Elevation, Sampling
Data type: Photo, Navigation, Geology

Equipment used

Equipment Usage description Data types Datasets
camera Photo (no data reported)
Handheld GPS Navigation (no data reported)
Handheld GPS Nomad Benchmarks, LIDAR, Navigation, Profiles, Transects (no data reported)
cores Geology 3

Datasets


Datasets compiled from multiple sources

Dataset name Equipment Description Dataset contact
Core descriptions and sand bed thickness cores Core descriptions and sand bed thickness data from Kahana Valley, O'ahu, Hawai'i SeanPaul M La Selle
Radiocarbon data from coastal wetlands on the Hawaiian islands of Kaua'i, O'ahu, and Hawai'i cores This portion of the data release presents radiocarbon age data from 66 samples collected from Anahola Valley (Kaua'i), Kahana Valley (O'ahu), and Pololu Valley (Hawai'i). Sample ages were determined by the National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility. The data are provided in a comma-delimited spreadsheet (.csv). SeanPaul M La Selle
Core descriptions and sand bed thickness data from Kahana Valley, O'ahu, Hawai'i cores This portion of the data release contains information on cores that were collected by the U.S. Geological Survey in Kahana Valley, O'ahu, Hawaii in 2015 and 2017. Sites were cored in order to describe wetland stratigraphy and to identify potential tsunami deposits. These cores contain mud, peat, fluvial sands, and marine carbonate sands, reflecting deposition in a variety of coastal environments. PDF files describe twenty-four (24) gouge and 'Russian' cores (hand held, side-filling peat augers) that were collected and described in the field. Cores collected in 2017 were described using the Troels-Smith sediment classification scheme (Troels-Smith, 1955, Nelson, 2015). Another pdf file (Kahana_cores_legend.pdf) contains a core-log legend. A comma-delimited text file (Kahana_sand_thickness.csv) includes tabulated information on the depth and thickness of sand bed K1. In addition, a shapefile (kahana_cores_locations.shp) provides sample locations of the vibracores. SeanPaul M La Selle

Publications

Samples collected during this field activity