BOULDER CREEK BATHOLITH, COLORADO PART 2- ISOTOPIC AGE OF EMPLACEMENT AND MORPHOLOGY OF ZIRCON.STERN TW; PHAIR G; NEWELL MF et al.1971; GEOL. SOC. AMER., BULL.; USA; 1971(6), VOL. 82, NUM. 0006, P. 1615 A 1633Miscellaneous

AGE OF PLUTONISM AND TECTONISM AND A NEW MINIMUM AGE LIMIT ON THE GLENARM SERIES IN THE NORTHEAST VIRGINIA PIEDMONT NEAR OCCOQUAN.SEIDERS VM; MIXON RB; STERN TW et al.1975; AMER. J. SCI.; USA; 1975, VOL. 275, NUM. 0005, P. 481 A 511Serial Issue