Ages for Chalcocite at Whatcom Co., Washington, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of Ma - Ma at this locality

• Locality age

• Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
  NAVDAT-75167	0.374	0.288				253812	Meadow Point, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75379	0.123	0.105				28933	Great Excelsior Mine (Lincoln Mine; President Mine; Excelsior Mine; Wells Creek Mine), Bearpaw Mountain, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75404	0.043	0.012				204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75405	0.043	0.012				204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75406	0.043	0.012				204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75445	0.043	0.012				68913	King Claim, Meadow Point, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75455	0.043	0.012				253812	Meadow Point, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75456	0.043	0.012				253812	Meadow Point, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75475	0.211	0.193				28933	Great Excelsior Mine (Lincoln Mine; President Mine; Excelsior Mine; Wells Creek Mine), Bearpaw Mountain, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75494	0.316	0.276				68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75495	0.513	0.477				68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75496	0.513	0.477				68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75498	0.513	0.477				68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75499	0.513	0.477				68908	Harrington Claim, Twin Sisters Mountain, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75507	0.043	0.012				204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75508	0.043	0.012				204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75509	0.043	0.012				204137	Sherman Crater, Mount Baker, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-75648	5.3	3.6				28915	Fourth Of July Mine, Swift Creek, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  NAVDAT-88041	1.193	1.117				28915	Fourth Of July Mine, Swift Creek, Mount Baker District, Whatcom Co., Washington, USA	NAVDAT	NAVDAT
  podchrome-00479	170	170			Cr	68896	Bumper Claim, Green Creek, Twin Sisters Mountain, Whatcom Co., Washington, USA	Moiser et al. (2012)	USGSSIR2012_5157
  podchrome-00480	170	170			Cr	68898	Cultus Claim, Skookum Creek, Twin Sisters Mountain, Whatcom Co., Washington, USA	Moiser et al. (2012)	USGSSIR2012_5157
  podchrome-00481	170	170			Cr	28911	Danny Mine (Dannie Mine; Washington Chrome Mine), Nooksack River, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA	Moiser et al. (2012)	USGSSIR2012_5157
  podchrome-00483	170	170			Cr	18134	Ribbon Mine (Washington Chrome Mine), Green Creek, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA	Moiser et al. (2012)	USGSSIR2012_5157
  podchrome-00484	170	170			Cr	68928	Sisters Claim, Skookum Creek, Twin Sisters Mountain, Whatcom Co., Washington, USA	Moiser et al. (2012)	USGSSIR2012_5157
  podchrome-00485	135	135			Cr	28906	Breckenridge Creek Mine (Sumas Mountain Mine; Stein Mine), Kendall, Mount Baker District, Whatcom Co., Washington, USA	Moiser et al. (2012)	USGSSIR2012_5157