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.
DX Delivery is a mail, courier and logistics company serving the United Kingdom and Ireland. The company provides a range of business-to-business and business-to-consumer services, including same day and next day delivery.X Courier has a range of convenient features, including flexible price options. The service also includes proof of delivery, online delivery confirmation and barcode tracking. There is also an option for simultaneous collections where DX also picks up items when delivering parcels.