Citation:

S0016702909110068

Name: (Table) Argon isotope ratios and argon ages of rocks obtained from the Chernorud zone, western Baikal area
Published: 2009
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Structural-petrologic and isotopic-geochronologic data on magmatic, metamorphic, and metasomatic rocks from the Chernorud zone were used to reproduce the multistage history of their exhumation to upper crustal levels. The process is subdivided into four discrete stages, which corresponded to metamorphism to the granulite facies (500-490 Ma), metamorphism to the amphibolite facies (470-460 Ma), metamorphism to at least the epidote-amphibolite facies (440-430 Ma), and postmetamorphic events (410-400 Ma). The earliest two stages likely corresponded to the tectonic stacking of the backarc basin in response to the collision of the Siberian continent with the Eravninskaya island arc or the Barguzin microcontinent, a process that ended with the extensive generation of synmetamorphic granites. During the third and fourth stages, the granulites of the Chernorud nappe were successively exposed during intense tectonic motions along large deformation zones (Primorskii fault, collision lineament, and Orso Complex).

The comparison of the histories of active thermal events for Early Caledonian folded structures in the Central Asian Foldbelt indicates that active thermal events of equal duration are reconstructed for the following five widely spiced accretion-collision structures: the Chernorud granulite zone in the Ol'khon territory, the Slyudyanka crystalline complex in the southwestern Baikal area, the western Sangilen territory in southeastern Tuva, Derbinskii terrane in the Eastern Sayan, and the Bayankhongor ophiolite zone in central Mongolia. The dates obtained by various isotopic techniques are generally consistent with the four discrete stages identified in the Chernorud nappe, whereas the dates corresponding to the island-arc evolutionary stage were obtained only for the western Sangilen and Bayankhongor ophiolite zone.

Project(s):

Archive of Ocean Data (ARCOD)

Coverage:

Median Latitude: 52.951504 * Median Longitude: 106.611096 * South-bound Latitude: 52.908830 * West-bound Longitude: 106.537500 * North-bound Latitude: 53.015110 * East-bound Longitude: 106.709670

Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m

Event(s):

02-99 (Chernorud1) * Latitude: 53.011740 * Longitude: 106.706980 * Location: Olkhon region, western Lake Baikal

20-TR (Chernorud2) * Latitude: 53.015110 * Longitude: 106.709670 * Location: Olkhon region, western Lake Baikal

Kh-404 (Ulan-Khargana3) * Latitude: 52.911920 * Longitude: 106.562140 * Location: Olkhon region, western Lake Baikal

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Minerals	Minerals		Travin, A V
3	Sample comment	Sample comment		Travin, A V
4	Parameter	Parameter		Travin, A V		neutron flux characterization
5	DEPTH, sediment/rock	Depth sed	m			Geocode
6	Temperature, technical	T tech	°C	Travin, A V
7	Time in minutes	Time	min	Travin, A V
8	Argon-40 at standard pressure	40Ar STP	10^-6 cm³/g	Travin, A V
9	Argon-40/Argon-39	40Ar/39Ar		Travin, A V
10	Argon-40/Argon-39, standard deviation	40Ar/39Ar std dev	±	Travin, A V		1 sigma
11	Argon-38/Argon-39	38Ar/39Ar		Travin, A V
12	Argon-38/Argon-39, standard deviation	38Ar/39Ar std dev	±	Travin, A V		1 sigma
13	Argon-37/Argon-39	37Ar/39Ar		Travin, A V
14	Argon-37/Argon-39, standard deviation	37Ar/39Ar std dev	±	Travin, A V		1 sigma
15	Argon-36/Argon-39	36Ar/39Ar	10^-3	Travin, A V
16	Argon-36/Argon-39, standard deviation	36Ar/39Ar std dev	±	Travin, A V		1 sigma
17	Calcium/Potassium ratio	Ca/K		Travin, A V
18	Argon-39	39Ar	%	Travin, A V
19	Age, dated	Age dated	ka	Travin, A V	Age, 40Ar/39Ar Argon-Argon
20	Age, dated standard deviation	Age dated std dev	±	Travin, A V	Age, 40Ar/39Ar Argon-Argon

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1620 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Minerals	3 Sample comment	4 Parameter	6 T tech [°C]	7 Time [min]	8 40Ar STP [10^-6 cm³/g]	9 40Ar/39Ar	10 40Ar/39Ar std dev [±]	11 38Ar/39Ar	12 38Ar/39Ar std dev [±]	13 37Ar/39Ar	14 37Ar/39Ar std dev [±]	15 36Ar/39Ar [10^-3]	16 36Ar/39Ar std dev [±]	17 Ca/K	18 39Ar [%]	19 Age dated [ka]	20 Age dated std dev [±]
T-53-06	Amphibole	charge 44.9 mg	J = 0.003592 ± 0.000034	700	10	0.00376	102.94	2.45	0.0629	0.0427	1.6575	0.1260	82.4	23.9	5.967	0.9	448600	37000
T-53-06	Amphibole	charge 44.9 mg	J = 0.003592 ± 0.000034	900	10	0.01537	81.50	0.37	0.0285	0.0085	1.1258	0.0346	39.3	4.6	4.053	5.6	404000	8000
T-53-06	Amphibole	charge 44.9 mg	J = 0.003592 ± 0.000034	975	10	0.01371	73.63	0.40	0.0286	0.0120	1.4978	0.0344	1.6	5.4	5.392	10.3	420900	9200
T-53-06	Amphibole	charge 44.9 mg	J = 0.003592 ± 0.000034	1050	10	0.07637	77.78	0.14	0.0240	0.0013	4.8286	0.0129	8.3	1.8	17.383	34.8	431900	4600
T-53-06	Amphibole	charge 44.9 mg	J = 0.003592 ± 0.000034	1075	10	0.15980	77.46	0.08	0.0186	0.0009	5.1415	0.0063	4.4	1.0	18.510	86.4	436200	4000
T-53-06	Amphibole	charge 44.9 mg	J = 0.003592 ± 0.000034	1100	10	0.02098	91.64	0.93	0.0277	0.0078	4.1260	0.0622	45.1	10.1	14.854	92.1	447100	16100
T-53-06	Amphibole	charge 44.9 mg	J = 0.003592 ± 0.000034	1150	10	0.02782	88.32	0.53	0.0259	0.0070	4.5654	0.0341	39.6	6.0	16.435	100.0	438500	10000
T-53-06	Biotite	charge 6.8 mg	J = 0.003585 ± 0.000034	500	10	0.00100	138.55	45.61	0.2942	0.3102	4.7928	1.9878	446.8	341.6	17.254	0.5	41600	576000
T-53-06	Biotite	charge 6.8 mg	J = 0.003585 ± 0.000034	700	10	0.00554	69.56	1.33	0.0720	0.0176	0.4299	0.1113	48.2	18.3	1.547	5.6	326300	29900
T-53-06	Biotite	charge 6.8 mg	J = 0.003585 ± 0.000034	850	10	0.03909	73.82	0.26	0.0199	0.0012	0.1444	0.0091	18.9	0.9	0.520	39.9	394800	3900
T-53-06	Biotite	charge 6.8 mg	J = 0.003585 ± 0.000034	1000	10	0.02262	75.78	0.41	0.0261	0.0060	0.1970	0.0342	23.6	2.7	0.709	59.2	397700	5700
T-53-06	Biotite	charge 6.8 mg	J = 0.003585 ± 0.000034	1225	10	0.04636	73.45	0.28	0.0168	0.0014	0.5419	0.0121	1.6	1.3	1.951	100.0	419300	4300
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	500	10	0.00594	59.83	1.29	0.0672	0.0112	0.2529	0.2114	138.9	19.3	0.911	0.2	117200	34200
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	600	10	0.02707	77.12	0.49	0.0266	0.0041	0.0917	0.0549	63.7	4.8	0.330	0.9	341500	8300
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	700	10	0.22085	72.32	0.07	0.0191	0.0006	0.0236	0.0059	8.5	0.3	0.085	7.2	401900	3400
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	750	10	0.20286	71.84	0.11	0.0182	0.0010	0.0244	0.0101	1.7	0.3	0.088	13.0	409700	3500
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	800	10	0.20429	71.65	0.13	0.0177	0.0007	0.0368	0.0064	3.2	0.6	0.133	18.8	406400	3600
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	850	10	0.10096	71.86	0.12	0.0223	0.0009	0.0588	0.0106	5.5	0.6	0.212	21.7	404000	3500
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	900	10	0.09057	71.69	0.09	0.0206	0.0009	0.0817	0.0151	6.1	0.9	0.294	24.2	402200	3600
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	950	10	0.08397	72.30	0.16	0.0167	0.0011	0.0422	0.0143	8.0	1.1	0.152	26.6	402600	3800
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	1000	10	0.08173	72.32	0.12	0.0191	0.0011	0.0440	0.0136	7.3	0.8	0.158	28.9	403700	3600
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	1050	10	0.06528	73.61	0.16	0.0164	0.0020	0.0188	0.0188	5.0	2.0	0.068	30.8	413800	4600
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	1100	10	0.12846	71.86	0.07	0.0168	0.0007	0.0209	0.0127	2.3	1.1	0.075	34.4	408900	3800
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	1150	10	0.54897	72.08	0.03	0.0173	0.0002	0.0166	0.0014	2.4	0.0	0.060	50.0	409900	3400
T-56-06	Biotite	charge 26.9 mg	J = 0.003574 ± 0.000033	1150	10	1.76100	72.08	0.03	0.0184	0.0002	0.0314	0.0027	5.6	0.2	0.113	100.0	405100	3400
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	500	10	0.20648	1236.40	47.30	0.9646	0.0395	0.3084	0.2197	3929.8	155.1	1.110	6.7	675700	88100
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	600	10	0.04790	899.47	28.00	0.9241	0.0459	2.9780	0.4396	2774.0	91.6	10.721	8.8	709400	71700
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	700	10	0.02530	2189.10	300.22	2.0450	0.3120	5.8780	2.2252	7141.4	988.9	21.162	9.3	702500	309900
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	800	10	0.02501	3223.40	586.11	2.4775	0.4770	4.3680	3.8901	10161.6	1856.6	15.725	9.6	1528100	313700
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	900	10	0.03307	3626.50	880.26	2.6429	0.6416	5.9100	3.2374	11130.9	2712.7	21.277	10.0	2004700	391000
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	1000	10	0.01765	51.13	0.19	0.0849	0.0051	1.8370	0.0648	21.9	3.6	6.614	23.8	430800	11100
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	1100	10	0.08050	47.54	0.06	0.1285	0.0008	3.5780	0.0105	5.2	1.1	12.881	91.6	442500	6800
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	1150	10	0.00790	56.79	0.57	0.1518	0.0114	24.3330	0.2841	36.2	10.1	87.598	97.2	443100	26400
Kh-404	Amphibole	charge 179.3 mg	J = 0.006041 ± 0.000095	1200	10	0.00578	82.59	1.27	0.2213	0.0108	540.6770	8.2895	41.3	16.1	1946.400	100.0	639100	38300
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	500	10	0.00129	71.28	5.90	1.5592	0.1644	15.8418	1.3192	186.8	31.6	57.030	0.3	175300	85800
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	600	10	0.00136	90.03	3.50	1.3859	0.0919	24.6525	0.9631	299.2	17.4	88.749	0.6	18200	43400
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	700	10	0.00102	108.48	10.09	1.0062	0.1233	13.8331	1.3110	272.6	40.1	49.799	0.7	294200	92600
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	800	10	0.00227	135.37	1.97	1.0979	0.0252	6.7080	0.1373	329.2	15.3	24.149	1.0	390300	39900
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	900	10	0.00147	64.06	3.22	0.8639	0.0671	8.5548	0.4342	99.9	50.5	30.797	1.4	357600	140400
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	1000	10	0.00748	51.77	0.35	1.0584	0.0077	12.6527	0.0902	52.6	6.7	45.550	3.8	373300	18600
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	1050	10	0.02688	46.08	0.13	1.1004	0.0045	13.7814	0.0419	11.4	2.9	49.613	13.6	432600	7700
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	1100	10	0.18791	44.51	0.04	1.0342	0.0010	11.0184	0.0097	0.8	0.7	39.666	84.6	446700	1900
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	1150	10	0.03200	46.69	0.11	1.0707	0.0039	12.3337	0.0282	10.4	2.2	44.401	96.1	440700	6000
02-99	Hornblende	charge 45.4 mg	J = 0.006344 ± 0.000110	1200	10	0.01199	51.80	0.43	1.0594	0.0108	15.6335	0.1305	32.3	8.3	56.281	100.0	428500	22300
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	500	10	0.02554	76.78	0.31	0.0704	0.0053	0.1351	0.0955	190.5	4.6	0.486	1.1	120900	7800
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	600	10	0.07790	56.85	0.09	0.0373	0.0013	0.0534	0.0535	111.4	0.9	0.192	5.8	140300	1900
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	650	10	0.11676	58.15	0.06	0.0278	0.0004	0.0640	0.0072	56.8	1.9	0.231	12.5	236000	3500
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	700	10	0.34986	67.95	0.03	0.0245	0.0003	0.0143	0.0041	29.3	0.8	0.051	30.0	329400	2900
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	750	10	0.24865	73.90	0.08	0.0216	0.0006	0.1032	0.0764	2.1	0.1	0.372	41.3	399100	3200
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	800	10	0.21165	75.29	0.06	0.0202	0.0003	0.0052	0.0052	15.0	0.9	0.019	50.8	387200	3300
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	850	10	0.13678	77.02	0.11	0.0204	0.0015	0.0120	0.0120	22.9	1.0	0.043	56.8	384300	3400
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	900	10	0.12786	69.16	0.06	0.0222	0.0011	0.0181	0.0144	27.8	1.0	0.065	63.1	337700	3200
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	950	10	0.10970	70.37	0.08	0.0222	0.0011	0.0009	0.0009	27.4	0.9	0.003	68.3	344500	3100
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	1000	10	0.28075	70.09	0.17	0.0233	0.0005	0.0189	0.0066	26.6	0.3	0.068	81.9	344300	2900
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	1050	10	0.20739	69.34	0.09	0.0221	0.0005	0.0136	0.0049	23.5	0.6	0.049	92.0	345200	3000
20-TR	Biotite	ID356a, charge 36.6 mg	J = 0.003379 ± 0.000030	1100	10	0.15817	66.83	0.06	0.0228	0.0010	0.0063	0.0063	25.0	1.1	0.023	100.0	330200	3100
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	450	10	0.01049	99.91	0.40	0.0753	0.0053	0.1204	0.1219	157.2	6.9	0.433	0.1	356100	12800
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	450	20	0.00731	101.47	1.28	0.0847	0.0051	2.1130	0.8948	285.6	12.5	7.607	0.1	121600	24500
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	550	10	0.01747	42.15	0.14	0.0305	0.0023	0.2930	0.2246	42.4	2.0	1.055	0.4	205900	4500
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	550	20	0.01439	48.60	0.10	0.0284	0.0052	0.1464	0.1482	66.4	2.8	0.527	0.7	201700	5800
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	600	10	0.02015	40.97	0.09	0.0281	0.0013	0.0847	0.0857	32.0	0.7	0.305	1.0	218500	2600
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	600	20	0.01767	49.90	0.22	0.0256	0.0029	0.1224	0.1239	56.6	0.8	0.441	1.3	229200	2900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	650	10	0.02573	40.10	0.06	0.0224	0.0005	0.0992	0.1005	20.7	0.9	0.357	1.8	234300	2900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	650	20	0.03248	44.40	0.10	0.0234	0.0016	0.0421	0.0427	34.0	1.7	0.152	2.3	236700	4000
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	700	10	0.04742	40.67	0.11	0.0172	0.0013	0.0085	0.0086	8.9	0.9	0.031	3.2	260400	3200
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	750	10	0.09871	39.56	0.08	0.0151	0.0007	0.0088	0.0089	7.5	0.4	0.032	5.0	256100	2700
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	800	10	0.15810	40.39	0.05	0.0155	0.0003	0.0219	0.0184	4.5	0.3	0.079	8.0	266900	2700
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	850	10	0.17535	43.75	0.05	0.0162	0.0003	0.0347	0.0111	4.3	0.3	0.125	10.9	288600	2900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	900	10	0.19382	49.94	0.07	0.0148	0.0001	0.0432	0.0224	3.6	0.4	0.155	13.8	328300	3300
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	950	10	0.19050	58.30	0.11	0.0159	0.0004	0.0858	0.0364	5.2	0.5	0.309	16.3	376100	3700
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1000	10	0.20954	63.78	0.08	0.0163	0.0003	0.0417	0.0192	6.1	0.3	0.150	18.7	407000	3900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1050	10	0.21170	66.21	0.08	0.0156	0.0003	0.0146	0.0148	6.6	0.2	0.053	21.1	420300	4000
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1100	10	0.20160	69.12	0.11	0.0162	0.0004	0.0149	0.0151	7.5	0.5	0.054	23.3	435700	4200
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1150	10	0.21411	72.00	0.17	0.0164	0.0005	0.0161	0.0163	8.5	0.3	0.058	25.5	450600	4300
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.31660	70.18	0.09	0.0159	0.0003	0.0518	0.0228	5.9	0.3	0.186	28.8	444600	4200
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.38779	65.60	0.06	0.0155	0.0002	0.0771	0.0130	3.9	0.3	0.278	33.2	421500	4000
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.46566	63.95	0.12	0.0154	0.0001	0.0618	0.0079	3.1	0.2	0.223	38.7	413200	4000
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.54353	62.82	0.16	0.0153	0.0001	0.0514	0.0044	2.5	0.1	0.185	45.1	407600	4000
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.49458	62.54	0.06	0.0152	0.0003	0.0347	0.0133	2.1	0.2	0.125	51.0	406500	3900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.49010	62.29	0.07	0.0153	0.0001	0.0292	0.0079	2.2	0.1	0.105	56.9	404900	3800
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.35803	62.40	0.06	0.0154	0.0002	0.0030	0.0030	3.6	0.1	0.011	61.1	403300	3800
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.36869	62.25	0.07	0.0155	0.0002	0.0893	0.0110	3.0	0.1	0.322	65.6	403400	3800
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.28531	62.51	0.06	0.0161	0.0001	0.0114	0.0110	3.4	0.1	0.041	69.0	404300	3800
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1200	6	0.27484	62.38	0.06	0.0162	0.0002	0.0641	0.0194	3.8	0.3	0.231	72.2	402700	3900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1220	6	0.29497	62.32	0.06	0.0149	0.0004	0.0021	0.0022	3.5	0.3	0.008	75.8	402900	3800
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1250	6	0.46156	61.92	0.08	0.0154	0.0002	0.0088	0.0030	2.6	0.2	0.032	81.3	402100	3800
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1250	6	0.35868	62.57	0.07	0.0153	0.0003	0.0007	0.0007	4.5	0.3	0.003	85.6	402600	3900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1250	6	0.27615	62.42	0.06	0.0161	0.0003	0.0107	0.0030	4.4	0.4	0.039	88.9	401900	3900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1250	6	0.21497	62.46	0.05	0.0159	0.0004	0.0029	0.0030	4.7	0.5	0.011	91.4	401600	3900
20-TR	Feldspar	charge 75.7.9 mg	J = 0.004083 ± 0.000043	1250	96	0.71734	62.46	0.05	0.0159	0.0004	0.0029	0.0030	4.7	0.5	0.011	100.0	401600	3900