Fig 1.
Location map of samples at Cowie Harbor, Scotland.
The top left onset shows the location of Stonehaven. The bottom right highlights the relationship of inland exposures to Cowie and location of large map after [5]. Fig 1 is based on [5], which is included as S1 Fig.
Fig 2.
Stratigraphic section at Cowie and location of samples (16COW1, 16COW2, and 16COW3, indicated by 1, 2, and 3 respectively) based on information in [5] and [6].
Descriptions of the rock assemblages are included.
Fig 3.
Secondary electron images of selected zircons from samples (A) 16COW1 and (B) 16COW3.
Grain number and ages are indicated.
Table 1.
LA-ICP-MS results from zircons dated in upper bed sample 16COW3.
Table 2.
LA-ICP-MS results from zircons dated in lower bed sample 16COW1.
Fig 4.
Concordia diagrams for zircon ages between 510 and 400 Ma for samples (A) 16COW1 and (B) 16COW3. (C) and (D) are plots of the ages in ascending order.