1. Snelling, AA. 1999. "Excess Argon": The "Achilles' Heel of Potassium-Argon and The Argon-Argon "Dating" of Volcanic RocksImpact 307:i-iv. CELD ID 2881.
"Excess Argon": The "Achilles' Heel of Potassium-Argon and The Argon-Argon "Dating" of Volcanic Rocks