Buried grounding zone wedges in the upper part of unit ASS-5 on the outer shelf suggest pronounced warming phases and ice sheet retreats during the early Pliocene as observed for the Ross Sea shelf and predicted by paleo-ice sheet models.
Buried landforms interpreted as lateral moraines and a grounding-zone wedge record the positions of still-stands or re-advances in the ice margin.
A number of buried glacigenic landforms, including palaeo-shelf break gullies and a grounding-zone wedge with a volume of 90 km3, are described from the Amundsen Gulf Trough stratigraphy.
Lateral grounding-zone wedges are identified at the northern and southern lateral margins of the Amundsen Gulf and M'Clure Strait troughs, respectively, and are interpreted to have been formed roughly contemporaneously by ice streams in Amundsen Gulf and M'Clure Strait.
"We face problems," Mr. Kostunica said, "before our domestic public and even before history whether the Albanian terrorists will remain in the ground safety zone or not.
Only lightly armed Serbian police officers are allowed to operate in the "Ground Safety Zone," as it is called, and the peacekeepers are allowed to enter only under extraordinary conditions.
To separate NATO forces from the Yugoslav Army, Belgrade agreed to a three-mile-wide "ground safety zone," bordering Kosovo but inside Serbia, from which all Serbian forces are banned, except police officers with light weapons.
On that score, he and his government in Belgrade have won plaudits from some unlikely quarters, including the United States, the EU and NATO, for restraint in dealing with the guerrillas who have dug into the "ground security zone", a five-kilometre (three-mile) strip on the boundary of Kosovo.
That sector, which borders Serbia proper, is the boundary line for the most vexing problem now for both the NATO force and Serbia: the activities of armed ethnic Albanian militants, known as the Liberation Army of Presevo, Medvedja and Bujanovac, in a three-mile "ground safety zone".
