Open Access

Fig. 5

image

Download original image

Field pictures of plumose or hackle plumes on fracture planes in the Fontainebleau quartzite. Upper line: raw pictures. Lower line: highlight of the plume structures. Left: Bois Persan quarry, site 5; centre and right: Madagascar quarry, site 1. Location Fig. 1, Table 1.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.