Covich and
Stuiver (1974) and Humphries (1981) provide detailed descriptions of the lake basin.
The ages were calibrated to calendar years using the program CALIB 3.0 (
Stuiver and Reimer 1993, Fuller 1997).
Assistants were employed to do specific jobs, and Slotboom charged 6-8
stuiver per day for them, depending on their experience.(43) Hence, even if he did not want to do a particular job himself, he could earn something by employing others.
Minze
Stuiver, a geochemist at the University of Washington in Seattle, says Scuderi's study presents a good case for a sun-climate link: "It's one of the better studies." But
Stuiver cautions that a simple correlation between two factors does not necessarily indicate that one caused the other.
Dataciones calibradas usando la curva SHCAL13 en el programa Calib 7.1 (
Stuiver et al.
2009) and the actual [sup.14]C activity of the surface ocean at a particular location [Rs(t)] (
Stuiver et al.
La edad calibrada (CALIB 43;
Stuiver et al., 1998) se ha tomado en el punto medio del intervalo de probabilidad (95,4%, 2 sigma).
Calibration was conducted using CALIB 5.0.2 software (
Stuiver et al., 2005) in combination with INTCAL04.
We report results as [DELTA[sup.14]C, which is defined in
Stuiver and Polach (1977) as the relative difference between an international standard (base year 1950) and sample activity.
A second test pit was excavated on the innermost rampart giving a date of 210-530 cal AD (
Stuiver & Reimer 1993) indicating that the rampart and moat may be contemporaneous with the earliest occupation of the site.