We present here the Multichannel Seismic metadata collected in 2022 by the PNRA19_00022 COLLAPS project "Cook glacier-Ocean system, sea LeveL and Antarctic Past Stability" Principal Investigator: L. De Santis OGS ldesantis@ogs.it The data set consist of ca. 300 km of multichannel seismic profiles collected with the R/V L. Bassi employing 2 x 210 cu.in. GI Gun and a 1500 m long digital streamer, 120 channels, intertrace of 12.5 m, shot interval 37.5 m (=circa 18.75 sec, ship speed 4 knots), record length 8 seconds. The data set was processed at OGS. The seismic trackline (and the segy stacked data) can be downloaded from the Antarctic Seismic Data Library System. The stacked seismic data are available after 4 years from the campaign. Keywords: Southern Ocean, Multichanenl Seismic, COLLAPS, Laura Bassi, Antarctica, SDLS.

During the XV Italian Antarctic expedition (1999/2000), 213 rocks have been sampled within the aim of the BACKTAM project in Oates Land and George V Land. They include intrusive, subvolcanic, volcanic, metamorphic and sedimentary rocks. The investigated regions are within Australian Antarctic Territory - Ross Dependency - Sr57-58, Australian Antarctic Territory - Sq55-56, Australian Antarctic Territory - Sr55-56 and Australian Antarctic Territory - Terre Adelie - Sq53-54 sheets. Project: Backside of the Transantarctic Mountains.