Title: Table 3
Author: ang

Table 2. Isotopic data from evaporation of single zircons of high-grade rocks in southern Tanzania.
_________________________________________________________________________________________
Sample	Zircon colour 	Grain	Mass	Evaporation	Mean ^207/Pb/^206Pb	^207Pb/^206Pb age
Number	and morphology	#	scans^1	temp. in °C	ratio^2 and 2-sm error	and 2-sm error _________________________________________________________________________________________
MS 2	clear to light grey,	1	94	1597	0.064767±45	766.8±1.5
	long-prismatic, 	2	116	1599	0.064787±33	767.4±1.1
	ends rounded	3	97	1599	0.064775±38	767.0±1.2
mean of grains 1-3	1-3	307		0.064777±22	*767.1±0.8

MS 3	clear to yellowish,	1	98	1599	0.070921±36	955.1±1.1
	long-prismatic,	2	118	1601	0.070944±32	955.8±0.9
	rounded termina-	3	128	1598	0.070945±28	955.8±0.8
	tions	4	105	1599	0.070943±35	955.8±1.0
			5	146	1602	0.070938±24	955.6±0.7
			6	115	1600	0.070914±24	954.9±0.7
			7	73	1599	0.070954±31	956.1±0.9
mean of grains 1-7	1-7	783		0.070937±11	*955.6±0.7
	clear to light yellow	8	78	1600	0.081339±41	1229.6±1.0
	ends rounded	9	96	1599	0.083146±37	1272.6±0.9
		10	70	1603	0.083193±48	1273.7±1.1
mean of grains 9 and 10	9-10	166		0.083166±29	1273.1±0.7

MS 4	yellow-brown,	1	103	1603	0.062442±34	689.3±1.2
	long-prismatic, 	2	146	1602	0.062434±28	689.0±0.9
	idiomorphic to	3	86	1599	0.062453±34	689.7±1.1
	slightly rounded	4	63	1600	0.062447±32	689.5±1.1
	terminations	5	118	1604	0.062460±15	689.9±0.5
mean of grains 1-5	1-5	516		0.062402±13	*689.9±0.9
			6		1598	0.068887±58	894.7±1.7

MS 5	clear to light	1	88	1598	0.075864±41	1091.5±1.1
	yellow-brown, 	2	84	1598	0.075879±22	1091.5±0.6
	long-prismatic,	3	65	1600	0.075869±46	1091.6±1.2
	rounded	4	81	1601	0.075902±36	1092.5±1.0
	terminations	5	64	1603	0.075891±46	1092.2±1.2
mean of grains 1-5	1-5	382		0.075881±17	*1091.9±0.7
		as above but	6	86	1608	0.077744±44	1140.3±1.1
	well rounded	7	98	1600	0.091519±33	1457.4±0.7
	terminations	8	85	1601	0.093589±57	1499.8±1.1
			9	57	1605	0.124108±62	2016.1±0.9

MS 6	clear to yellow-	1	107	1602	0.072744±33	1006.8±0.9
	brown, long-	2	108	1600	0.072696±35	1005.5±1.0
	prismatic, rounded	3	105	1599	0.072726±33	1006.3±0.9
	terminations	4	79	1602	0.072758±39	1007.2±1.1
mean of grains 1-4	1-4	399		0.072729±17	*1006.4±0.8

MS 7	clear, thin, long-	1	114	1595	0.063941±53	739.7±1.8
	prismatic,	2	75	1599	0.063924±46	739.1±1.5
	slightly rounded	3	99	1598	0.063932±27	739.4±0.9
	terminations		119	1598	0.063936±22	739.5±0.7
mean of grains 1-4	1-4	355		0.063934±16	*739.4±0.9

MS 8	dark red-brown,	1	74	1608	0.061549±22	658.5±0.8
	long-prismatic,	2	117	1604	0.061534±26	658.0±0.9
	idiomorphic to	3	104	1602	0.061559±32	658.8±1.1
	slightly rounded	4	110	1600	0.061545±29	658.3±1.0
	terminations	5	40	1602	0.061543±87	658.3±3.0
mean of grains 1-5	1-5	440		0.061546±15	*658.4±0.9

MS 9	clear to yellowish,	1	70	1599	0.065756±48	798.6±1.5
	long-prismatic,	2	108	1601	0.065722±34	797.5±1.1
	slightly rounded	3	117	1599	0.065728±33	797.7±1.0
	terminations	4	75	1602	0.065744±42	598.2±1.4
		5	87	1598	0.065749±40	798.4±1.3
		6	115	1600	0.065740±32	798.1±1.0
mean of grains 1-6	1-6	572		0.065738±15	*798.0±0.8

MS 10	dark grey, round,	1	105	1597	0.062812±28	701.9±0.9
	detrital	2	64	1594	0.063613±41	728.8±1.4
	grains	3	108	1595	0.062852±43	703.3±1.4
__________________________________________________________________________________________

Table 3 continued
__________________________________________________________________________________________
Sample	Zircon colour 	Grain	Mass	Evaporation	Mean ^207/Pb/^206Pb	^207Pb/^206Pb age
Number	and morphology	#	scans^1	temp. in °C	ratio^2 and 2-sm error	and 2-sm error __________________________________________________________________________________________
MS 12	grey-brown, 	1	76	1600	0.065569±44	792.6±1.4
	long-prismatic,	2	64	1599	0.065586±51	793.2±1.6
	well rounded	3	86	1601	0.065553±39	792.1±1.2
	terminations	4	84	1600	0.065563±38	792.5±1.2
		5	97	1598	0.065581±37	793.0±1.2
		6	81	1601	0.065576±26	792.9±0.8
mean of grains 1-6	1-6	488		0.065571±16	*792.7±0.8

MS 13	clear,	1	103	1608	0.060773±25	631.2±0.9
	long-prismatic,	2	131	1614	0.060777±20	631.4±0.7
	well rounded	3	115	1618	0.060791±20	631.8±0.7
	terminations	4	118	1612	0.060764±22	630.9±0.8
		5	85	1620	0.060801±28	632.2±1.0
		6	91	1614	0.060782±22	631.5±0.8
mean of grains 1-6	1-6	643		0.060780±  9	*631.5±0.9
	clear, multifaceted, 	7†	84	1614	0.060492±33	621.2±1.2
	ball-round,	8†	155	1624	0.060449±19	619.7±0.7
	fractions of 3-4	9†	68	1604	0.060438±32	619.3±1.1
	grains each	10†	118	1607	0.060468±26	620.4±0.9
		11†	112	1610	0.060459±17	620.0±0.6
mean of grain fract. 7-11	7-11	499		0.060461±11	*620.1±0.9

MS 14	yellow-brown,	1	81	1600	0.062874±32	704.0±1.1
	long-prismatic,	2	120	1599	0.062869±23	703.8±0.8
	ends rounded	3	106	1598	0.062844±33	703.0±1.1
mean of fractions 1-3	1-3	307		0.062817±17	*702.0±0.9

MS 15	grey, short- to	1	84	1600	0.062052±36	675.9±1.3
	long-prismatic,	2	107	1598	0.062064±29	676.3±1.0
	well rounded	3	106	1599	0.062047±40	675.7±1.4
	terminations	4	100	1598	0.062070±41	676.5±1.4
mean of grains 1-4	1-6	397		0.062058±18	*676.1±0.9

MS 16	clear to light grey,	1	110	1599	0.061739±33	665.1±1.2
	long-prismatic,	2	154	1599	0.061731±27	664.8±0.9
	rounded termi-	3	176	1604	0.061753±26	665.6±0.9
	nations	4	88	1605	0.061755±23	665.6±0.8
mean of grains 1-4	1-4	528		0.061744±14	*665.3±0.9
__________________________________________________________________________________________
^1Number of ^207Pb/^206Pb ratios evaluated for age assessment. ^2Observed mean ratio corrected for non-radiogenic Pb where necessary. Errors based on uncertainties in counting statistics. †Fractions of 3-4 grains were evaporated together. *Errors of combined mean ages (bold print) are based on reproducibility of internal standard at 0.000026 (2s).