tab 	locations
citations	description	expedition_description	expedition_name	lat_n	lat_s	location	location_type	lon_e	lon_w
This study	36. 82278N, 116. 46902W.			44.976	44.976	IRM_Mail-ins	Outcrop	266.768	266.768
This study	specimens sent for measurement.			36.8228	36.8228	Yucca Mountain, NV, west flank, Topopah Springs SW	Outcrop	243.531	243.531
This study		Tiva Canyon Tuff, focus on SP layers.	Yucca Mountain 2004						
This study		IRM standards, reference materials, etc.	IRM						
This study		Tiva Canyon Tuff, Yucca Mtn, JGR94 (B4) 6035-6052, 1991.	Charley Schlinger Tiva Canyon						
