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 digital marketing. Direct digital marketing is marketing through an email address, a web browser or a mobile phone number. Traditional direct marketing was achieved using a customerâs postal address. Additional types of marketing. Traditional marketing communications are divided into two primary types: direct marketing and mass marketing. Direct marketing is a marketing method that uses such things as a consumerâs postal address to send addressable communications to a target audience.