2020-625-FA (CMHRP activity #8473)

Field Activity 2020-625-FA

Identifier

2020-625-FA

Alternate names

Alaska Lakes 2020

Purpose

2018 Anchorage earthquake response studies in lacustrine settings (supplemental project)

Location

Lakes in the Anchorage region

Summary

Operations during field activity 2020-625-FA successfully collected a geophysical (Chirp) and geologic (sediment cores) dataset.

Info derived

subbottom profiles and short gravity cores in lakes

Comments

Drake Singleton, new postdoc at PCMSC, will be co-leading this.

Projects

Platform

Other

Vehicles

None

Itinerary

Start	Anchorage	2020-08-08
End	Anchorage	2020-08-27
Days in the field	19

Bounds

West	-153.14100266
East	-148.15200806
North	62.07350818
South	59.46479157

Marine operations

Yes

Personnel

Organization

USGS, Pacific Coastal and Marine Science Center(PCMSC)

2885 Mission Street

Santa Cruz, CA95060

(831) 460-7401

Principal investigators

Daniel Brothers

Crew members

Daniel Brothers	Scientist, Staff
Singleton, Drake	Scientist, Staff

Information specialist(s)

Alicia F Balster-gee

Specialist, Information

Affiliate principal

Peter Haeussler (ASC)

Data types and categories

Data category:	Location-Elevation, Sampling, Seismics
Data type:	Navigation, Geology, Sub Bottom Profiler

Equipment used

Equipment	Usage description	Data types	Datasets
navigation equipment		Navigation	2
Gravity Core		Geology	11
512 chirp-source		Sub Bottom Profiler	(no data reported)
subbottomprofiler		Sub Bottom Profiler	2

Datasets

Datasets compiled from multiple sources

Dataset name	Equipment	Description	Dataset contact
Coordinates of percussion driven gravity cores	navigation equipment	Coordinate information for sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake	Drake Singleton
Coordinates of percussion driven gravity cores collected in Alaskan lakes and fjords following the 2018 Anchorage earthquake	navigation equipment	This dataset includes coordinate information for sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake. The cores were collected with a percussion driven gravity corer for use in regional hazard assessments relating to Alaska's seismic hazard.	Drake Singleton
Cesium-137 concentration data	Gravity Core	Cesium-137 concentration data from sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake	Drake Singleton
Multi-sensor core logger data	Gravity Core	Multi-sensor core logger (MSCL) data from sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake	Drake Singleton
Computed tomography (CT) scans	Gravity Core	Computed tomography (CT) scans of sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake	Drake Singleton
Grain-size data of percussion driven gravity cores	Gravity Core	Grain-size data from sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake	Drake Singleton
Summary of event deposit characteristics	Gravity Core	Qualitative interpretations of event deposits from sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake	Drake Singleton
Event deposit characteristics	Gravity Core	Deposit thickness and grain size measurements from sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake	Drake Singleton
Cesium-137 concentration data of percussion driven gravity cores collected in Alaskan lakes and fjords following the 2018 Anchorage earthquake	Gravity Core	This dataset includes Cesium-137 concentration data from sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake. The cores were collected with a percussion driven gravity corer for use in regional hazard assessments relating to Alaska's seismic hazard.	Drake Singleton
Multi-sensor core logger (MSCL) data of percussion driven gravity cores collected in Alaskan lakes and fjords following the 2018 Anchorage earthquake	Gravity Core	This dataset includes multi-sensor core logger (MSCL) data from sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake. The cores were collected with a percussion driven gravity corer for use in regional hazard assessments relating to Alaska's seismic hazard.	Drake Singleton
Computed tomography (CT) scans of percussion driven gravity cores collected in Alaskan lakes and fjords following the 2018 Anchorage earthquake	Gravity Core	This dataset includes computed tomography (CT) scans of sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake. The cores were collected with a percussion driven gravity corer for use in regional hazard assessments relating to Alaska's seismic hazard.	Drake Singleton
Photographs of percussion driven gravity cores collected in Alaskan lakes and fjords following the 2018 Anchorage earthquake	Gravity Core	This dataset includes photographs of sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake. The cores were collected with a percussion driven gravity corer for use in regional hazard assessments relating to Alaska's seismic hazard.	Drake Singleton
Grain-size data of percussion driven gravity cores collected in Alaskan lakes and fjords following the 2018 Anchorage earthquake	Gravity Core	This dataset includes grain-size data from sediment cores collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake. The cores were collected with a percussion driven gravity corer for use in regional hazard assessments relating to Alaska's seismic hazard.	Drake Singleton
Chirp seismic-reflection and navigation data	subbottomprofiler	Chirp seismic-reflection data and associated navigation files were collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake	Drake Singleton
Chirp seismic-reflection and navigation data collected in Alaskan lakes and fjords following the 2018 Anchorage earthquake	subbottomprofiler	Chirp seismic-reflection data and associated navigation files were collected from lacustrine and fjord basins in southcentral Alaska following the 2018 Anchorage earthquake. These data were collected from a 25-foot Boston Whaler (R/V Moose Dancer),18-foot cataraft (R/V Enterprise), and the R/V Alaskan Gyre in the summers of 2020 and 2021 for use in regional hazard assessments relating to Alaska's seismic hazards.	Drake Singleton

Datasets not currently associated with specific equipment

Dataset name	Description	Dataset contact
Photographs of percussion driven gravity cores	Photographs of sediment cores made using using a Geotek multi-sensor core logger (MSCL) system	Drake Singleton

Publications

Samples collected during this field activity