div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentusgs-floga-les-o-sonora-ca-na-nea-o-mexico-map-showing-distribution-pattern-tungstenhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: USGS · floga les o SONORA Ca na nea o MEXICO MAP SHOWING DISTRIBUTION PATTERN TUNGSTEN FROM SAMPLES THE FRACTION HEAVY-MINERAL CONCENTRATES NORTHERN SONORA Tot tea Reported bal loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader035fdocumentsusreader035viewer202207121260273d8e18a79607a146089fhtml5thumbnails1jpg width=140 height=200 divdiv