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A NEW IDEA IN MARSH CORING

THE WEDGE

^a Dep. of Soil and Water Science, University of Florida, Gainesville, FL 32611-0510
^b Géochimie des Eeaux, University of Paris 7, 75721 Paris, France
^c Dep. of Geological Sciences, University of Cape Town, Rondebosch, Cape Town, 7700, South Africa
^d Faculty of Earth Sciences, Utrecht University, 3508 TA Utrecht, The Netherlands

View larger version (24K): [in a new window]   Fig. 1. Wedge corer schematic. When fully assembled, the cover plate should slide easily into the groove tracks on the side plates of the main body. To facilitate entry into the soil and sediment, lower edges of all components are sharpened.

View larger version (45K): [in a new window]   Fig. 2. Wedge corer construction components: cover and back plates. The points of side plate attachment to the back plate are denoted by ‘X’s. Detail of wedge corer component side plate. Please note, as they are mirror images, only one of the two required side plates is pictured.

View larger version (33K): [in a new window]   Fig. 3. Wedge corer operation. (1) The main body is inserted, (2) the cover plate is inserted into the groove track, (3) retaining pins are inserted to hold the cover plate in place, and (4) the core-containing assembly is removed.

View larger version (110K): [in a new window]   Fig. 4. Photograph showing wedge corer sample following removal of the cover plate. Note the wide exposed core face, presence of cleanly cut Spartina alterniflora roots, and preserved organism burrows.