div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentpubsusgsgov-amazon-basin-sonar-enabled-cartographers-to-map-the-ocean-floorhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: pubsusgsgov · Amazon basin Sonar enabled cartographers to map the ocean floor In 1975 a satellite gave cartographers their first global view of the Earth 1976—General Electric loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220423135edce25fad6a402d6667c10ehtml5thumbnails1jpg width=140 height=200 divdiv