Husaby-Gökhem-Göteve-Kestad oak
Husaby-Gökhem-Göteve-Kestad oak. In Alf Bråthens webpage[1] he attach measurements from a few oak samples from four medieval churches in Västergötland (Diocese of Skara): Husaby, Gökhem, Göteve and Kestad. There are six raw measurement series and one mean value series (average of five). Note that the measurement lists starts with the youngest ring. Two of the samples are erroneously dated, one has not yet been possible to confirm, the mean-sample has, by unknown reasons, low correlation values. The samples was compared towards each other and the references HallandQU and BVSQgt4 (2009-06-16). I.e a temporary reference was created for each sample, based on the two references and the other confirmed or redated samples in the collection. The samples are:
Husaby church
HUSABY 8 (HUSABY8): 173 rings, AD 850-1022 (confirmed). (Prop2yrs: corr=0.46, TTest=6.3)
HUSABY 18 (HUSABY18): 69 rings, (AD 1004-1072 but not confirmed) It is a too short sample to be dated towards available, not so local references. TTest is about 4 for several positions, among them 1072. Maybe a stronger local reference was used for this date?
Gökhem church
GÖKEKMV (GoKEKMV): 135 rings, mean sample of five, (AD 926-1060 not confirmed, but maybe correct according to block analysis but still too low corr and TTest. There may possibly be some problem behind the avarage.)
Gökhem 127
Gökhem 127D
Göteve
Göteve 6
Kestad church
Kestad 1