|Description||Sediment magnetic and geochemical results have been obtained from the top 60 meters of lacustrine sediments recovered in two cores from Tule Lake in northern California. The sediment magnetic and geochemical data, presented here in tabular form, compleme|
|Originators||Best, Patti J.; Reynolds, Richard L.; Rosenbaum, Joseph G.; Dean, Walt; Honey, Jeannine; Drexler, John; and Adam, David. P.|
|Publication||U.S. Geological Survey Open-File Report 96-293|
Tule Lake Sample no.: A unique sample number used for all measurements. Core no.: Identifies core. Five cores were recovered from Tule Lake. This document provides data from cores 1 and 2. Drive no.: Identifies location in the core. Each core was divided into drives numbered sequentially starting with 1 at the top. Some drives have been further divided into slugs indicated by letters, starting with A at the top of the drive. Drive depth: The depth in meters of the top of the drive from the top of the core. Taken from driller¹s reports. Sample depth in drive (m): Midpoint of sample depth interval in meters. Sample depth in core (m): Sample depth within drive (m) plus adjusted depth from top of core. Adjusted depth in core (m): The depth in meters of the top of the drive from the top of the core. Depths for core 2 have been lowered by 1.17 meters based on the location of the Trego Hot Springs ash located in each core (see Bradbury, 1991). Sample density (kg/m3): Density of sample calculated from the mass of the dried box samples used in magnetic mineral studies. MSLF: Low-frequency magnetic susceptibility in m3/kg. FDMS: Frequency-dependent magnetic susceptibility in percent. IRM (1.2T): Isothermal remanent magnetization from induction in a 1.2 tesla field at room temperature. Expressed in Am2/kg. IRM (-.3T): Isothermal remanent magnetization from induction in a -0.3 tesla field at room temperature. Expressed in Am2/kg. S: (S Ratio) calculated as IRM (-0.3T)/IRM(1.2T). HIRM: Hard isothermal remanent magnetization: HIRM is calculated as: [IRM(1.2T) + IRM(-0.3T)]/2 and expressed in Am2/kg. ARM: Anhysteretic remanent magnetization in Am2/kg. Element concentration, Cr: Chromium-ppm Element concentration, Cr: Copper-ppm Element concentration, Fe: Iron- Wt% Element concentration, Mn: Manganese-ppm Element concentration, Mo: Molybdenum-ppm Element concentration, Nb: Niobium-ppm Element concentration, Ni: Nickel-ppm Element concentration, Rb: Rubidium-ppm Element concentration, Sr: Strontium-ppm Element concentration, Ti: Titanium-Wt % Element concentration, V: Vanadium-ppm Element concentration, Y: Yttrium-ppm Element concentration, Zn: Zinc-ppm Element concentration, Zr: Zirconium-ppm Total Carbon: Percent of carbon (both organic and inorganic) in sample. Carbonate Carbon: Percent of inorganic carbon in sample. Organic Carbon: Percent of organic carbon in sample. Calculated as total carbon minus carbonate carbon.
U.S. Geological Survey Open-File Report 96-293