The asthenosphere is a part of the upper mantle just below the lithosphere that is involved in plate tectonic movement and isostatic adjustments.n the old oceanic mantle the transition from the lithosphere to the asthenosphere, the so-called lithosphere-asthenosphere boundary (LAB) is shallow (about 60 km in some regions) with a sharp and large velocity drop (5-10%).
direct delivery. Consignment in which the delivery documents (such as a bill of lading) are sent directly to the consignee, without using an intermediary such as a bank.
Direct marketing is a method of contacting customers and potential customers personally, rather than having an indirect medium between the company and the consumer, such as magazine ads or billboards that are seen by the general public.