div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=heat-flow-through-the-floor-of-the-eastern-north-pacific-ocean-5799d8e94b1b2htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Heat Flow through the Floor of the Eastern North Pacific Ocean loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentssitereader031viewer2022020522575067fd1a28ab0f07ae12a0html5thumbnails1jpg width=140 height=200 divp© 1952 Nature Publishing Grouppdiv