SHRIMP U-Pb Geochronology of the Socorro Batholith and implications for the Neoproterozoic evolution in SE Brazil

Toledo, Bárbara Bueno; Janasi, Valdecir de Assis; Silva, Luiz Gustavo Ribeiro da

doi:10.1590/2317-4889201820180040

Acessibilidade / Reportar erro

Brasil

Brazilian Journal of Geology

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

ARTICLE • Braz. J. Geol. 48 (04) • Oct-Dec 2018 • https://doi.org/10.1590/2317-4889201820180040 copy

SHRIMP U-Pb Geochronology of the Socorro Batholith and implications for the Neoproterozoic evolution in SE Brazil

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT:

The Socorro Batholith is one of the most expressive granite manifestations associated with the Neoproterozoic evolution in SE Brazil, occupying large areas (~1,200 km ² ) in the southern portion of the Socorro-Guaxupé Nappe. A U-Pb zircon SHRIMP dating program was developed to determine the ages of the main components of this batholith, identified in previous detailed mapping projects. High-K calc-alkaline (HKCA) porphyritic biotite-hornblende granites with relatively low (60-67 wt%) SiO ₂ are the most voluminous component of this and other large “syn-tectonic” batholiths in the SGN (Água Limpa and Pinhal-Ipuiúna) and neighboring domains located south of it in the Apiaí and São Roque Domains of the Ribeira Fold Belt. Two samples collected in widely separated localities at the northern and southern part of the Socorro batholith yield similar ages of magmatic crystallization, respectively 610.1 ± 7.0 and 608.3 ± 6.6 Ma. A more fractioned (> 72 wt% SiO ₂ ) granite reported in the literature as related to a younger event (“Socorro II magmatism”, as opposed to the previous “Socorro I” HKCA granites) yield a precise age that is clearly older (624.4 ± 3.6 Ma), and contemporary to anatectic granites and migmatites that were produced during a prolonged period of high-grade metamorphism (635-605 Ma) that affected the SGN. Our data thus indicates that at least part of the HKCA magmatism that constitutes the Socorro batholith post-dates the high-P metamorphism associated to continental collision, and may have been a source of heat and volatiles to the high-T metamorphism responsible for partial melting of the upper portions of the crustal section represented by the SGN. Two charnockitic rocks that show transitional contacts with granites of the Socorro batholith were also dated. The Socorro Charnockite is aged 641.6 ± 4.1 Ma, which overlaps those of regional orthogneisses (in part also of charnockitic character) considered as associated with a pre-collisional tectonics (subduction-related?). However, it is reported to transition to granites that are very similar to the HKCA granites of the Socorro batholith, which are yet undated. The Atibaia Charnockite has distinct geochemical affinity (lower mg# and Sr content; higher Zr), a younger age (633.3 ± 6.2 Ma), and may signal a different tectonic setting at the end of the period of plate consumption as yet poorly characterized.

KEYWORDS:
zircon; U-Pb geochronology; SHRIMP; Socorro-Guaxupé Nappe; High-K calc-alkaline granite

	Salmão Granite		Bragança Paulista Granite								Socorro Charnockite		Atibaia Charnockite
	BRP-03	BRP-06C	BRP-13	BRP-06A	BRP-06B	BRP-07	BRP-08	BRP-09	BRP-10	ATB-13	BRP-11	BRP-12	ATB-06A	ATB-08	BRP-05
SiO₂	73.55	72.81	63.89	60.69	64.77	64.59	61.71	63.58	65.95	66.30	63.75	61.68	69.10	69.77	68.47
TiO₂	0.22	0.45	0.87	1.18	0.862	0.93	1.15	1.17	0.89	0.80	1.15	0.92	0.53	0.46	0.54
Al₂O₃	13.34	13.30	15.23	15.77	14.63	14.74	15.15	14.85	14.74	14.61	14.92	16.22	14.46	14.66	14.23
Fe₂O₃	1.29	2.27	4.47	5.99	4.42	4.60	5.71	6.24	4.47	4.29	5.90	5.62	3.76	3.04	3.62
MnO	0.02	0.02	0.07	0.09	0.058	0.07	0.08	0.10	0.07	0.08	0.10	0.11	0.05	0.03	0.03
MgO	0.29	0.58	1.66	2.23	1.59	1.65	2.02	2.04	1.50	1.55	2.01	2.19	0.62	0.57	0.66
CaO	1.45	1.79	3.57	4.58	3.50	3.71	3.91	4.22	3.59	3.18	4.06	4.56	1.91	2.03	1.85
Na₂O	2.81	2.32	3.09	3.19	2.82	2.64	3.10	2.94	2.95	2.94	2.97	3.09	2.79	2.81	2.83
K₂O	5.22	5.39	4.59	4.08	4.80	4.54	4.63	3.58	4.44	4.70	3.67	3.76	5.76	5.88	5.73
P₂O₅	0.04	0.11	0.33	0.39	0.327	0.31	0.37	0.41	0.30	0.30	0.39	0.35	0.15	0.15	0.15
LoI	0.46	0.72	0.78	1.98	1.59	0.78	0.81	0.80	0.74	0.29	0.75	0.66	0.32	0.32	0.53
Total (%)	98.68	99.76	98.56	100.16	99.37	98.55	98.64	99.93	99.64	99.029	99.67	99.16	99.45	99.722	98.63
Ba	541	1397	1350	1.600	1622	1581	1584	1.058	1290	1.340	1076	1.318	676	654	651
Ce	134	231	122	169	156	127	189	190	107	120	199	127	186	168	230
Co	< 6	< 6	7	12	7	8	10	9	6	6	8	9	<6	< 6	< 6
Cr	< 13	< 13	20	24	16	16	20	< 13	< 13	20	< 13	13	<13	< 13	< 13
Cu	< 5	7	9	10	15	8	12	10	8	9	10	14	6	6	5
Ga	19	15	23	23	19	21	21	21	19	20	23	20	19	18	20
La	73	124	61	90	82	60	88	103	66	72	101	70	88	91	121
Nb	< 9	< 9	18	14	11	17	20	19	13	15	18	14	13	12	11
Nd	41	57	50	62	51	60	75	67	40	37	73	49	58	53	73
Ni	< 5	< 5	11	10	9	9	9	8	7	11	8	11	<5	< 5	< 5
Pb	30	21	19	18	13	16	19	15	18	20	14	20	18	25	17
Rb	183	118	153	126	134	135	153	126	131	157	130	111	166	168	176
Sc	< 14	< 14	< 14	14	< 14	< 14	14	14	< 14	< 14	15	16	<14	< 14	< 14
Sr	183	643	681	783	748	678	658	542	626	647	544	799	141	170	162
Th	35	31	< 7	18	10	< 7	7	13	7	10	13	8	14	17	30
U	4	7	8	10	8	8	9	9	7	9	8	8	5	6	5
V	10	36	74	100	74	80	99	96	71	65	84	102	29	21	31
Y	5	8	28	21	17	28	31	32	19	18	29	26	16	11	9
Zn	22	30	65	90	69	73	89	90	67	62	86	74	50	41	54
Zr	159	197	250	271	254	261	318	341	223	252	328	231	415	402	397

Sample	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Hf	Pb	Th	U
BRP-03	75.83	134.69	14.23	44.21	6.25	1.13	2.75	0.33	1.24	0.18	0.39	0.05	0.31	0.05	4.70	33.05	36.17	1.56
BRP-08	86.71	174.14	20.68	76.57	12.59	2.31	8.16	1.06	5.58	1.05	2.75	0.39	2.39	0.33	8.45	17.44	5.70	0.89
BRP-12	65.47	129.80	14.32	52.26	9.04	2.13	5.84	0.83	4.52	0.85	2.24	0.33	2.04	0.29	5.40	17.08	6.74	0.42
ATB-08	84.28	160.27	17.37	56.65	8.39	1.34	4.09	0.56	2.45	0.42	1.01	0.12	0.69	0.10	8.73	20.61	14.31	0.71
ATB-13	65.27	120.23	13.26	45.41	7.85	1.76	5.18	0.71	3.50	0.64	1.62	0.23	1.36	0.20	6.80	18.64	9.08	0.89

Sample spot	Pb total (commom) (%)	Pb rad ppm	Th ppm	U ppm	Th/U	²⁰⁷ Pb/ ²³⁵ U	1σ	²⁰⁶ Pb/ ²³⁸ U	1σ	Rho	²⁰⁷ Pb/ ²⁰⁶ Pb	1σ	²⁰⁶ Pb/ ²³⁸ U Age (Ma)	1s	²⁰⁷ Pb/ ²⁰⁶ Pb (Ma)	1s	% Discordant
ATB - 08 (Atibaia Charnockite)									UTM: 74479343 x 36105 23 K
1.1	0.05	20	141	234	0.62	0.835	1.991	0.101	1.521	0.764	0.062	0.741	618	9	612	28	-1
2.1	-0.06	12	68	134	0.53	0.919	2.852	0.106	1.594	0.559	0.060	0.715	648	10	709	50	+9
3.1	0.35	30	102	336	0.31	0.874	1.807	0.105	1.496	0.828	0.064	1.440	645	9	613	22	-5
4.1	-0.08	25	125	270	0.48	0.900	2.551	0.106	1.721	0.675	0.060	0.669	648	11	666	40	+3
5.1	0.04	39	185	442	0.43	0.856	1.827	0.104	1.612	0.882	0.061	0.734	637	10	595	19	-7
6.1	0.03	10	58	115	0.52	0.868	3.199	0.104	1.956	0.612	0.061	0.813	637	12	624	55	-2
7.1	0.90	45	54	519	0.11	0.825	1.654	0.100	1.477	0.893	0.068	1.732	616	9	590	16	-5
8.1	0.13	37	197	422	0.48	0.862	1.732	0.103	1.487	0.858	0.061	0.957	634	9	622	19	-2
9.1	-0.04	46	90	513	0.18	0.861	1.630	0.104	1.476	0.906	0.060	0.665	636	9	609	15	-5
10.1	0.04	41	230	445	0.53	0.898	1.925	0.106	1.716	0.891	0.062	1.864	652	11	646	19	-1
11.1	0.60	6	54	72	0.78	0.840	4.896	0.101	2.263	0.462	0.066	1.371	619	13	620	94	+0
11.2	-0.05	29	116	331	0.36	0.859	1.794	0.103	1.498	0.835	0.061	0.879	633	9	617	21	-3
ATB - 13 Bragança Paulista									UTM: 7464639 x 338956 23 K
1.1	-0.05	41	219	471	0.48	0.844	1.659	0.102	1.479	0.892	0.060	0.725	625	9	607	16	-3
2.1	0.79	32	145	370	0.41	0.869	2.102	0.101	1.493	0.710	0.067	0.772	618	9	697	32	+12
3.1	-0.06	83	618	950	0.67	0.834	1.567	0.102	1.459	0.931	0.060	0.485	624	9	586	12	-7
4.1	0.22	51	360	604	0.62	0.803	2.120	0.098	1.472	0.694	0.062	1.317	601	8	591	33	-2
5.1	-0.12	56	239	604	0.41	0.898	1.650	0.107	1.493	0.905	0.061	0.666	657	9	630	15	-4
5.2	0.66	52	445	611	0.75	0.819	3.338	0.100	1.479	0.443	0.066	1.784	612	9	589	65	-4
6.1	0.27	53	266	621	0.44	0.834	1.779	0.100	1.470	0.826	0.063	0.698	614	9	623	22	+2
7.1	0.28	38	209	447	0.48	0.804	2.012	0.098	1.628	0.809	0.062	0.691	603	9	585	26	-3
8.1	0.02	32	245	367	0.69	0.833	1.788	0.101	1.491	0.834	0.061	0.793	620	9	597	21	-4
9.1	-0.01	57	781	663	1.22	0.822	1.616	0.100	1.468	0.909	0.060	0.566	615	9	589	15	-5
10.1	0.52	47	234	575	0.42	0.783	2.273	0.096	1.502	0.661	0.064	0.818	591	8	573	37	-3
11.1	0.05	42	168	469	0.37	0.872	1.772	0.104	1.492	0.842	0.061	0.816	638	9	632	21	-1
12.1	0.83	55	584	665	0.91	0.799	2.233	0.096	1.474	0.660	0.066	0.683	590	8	620	36	+5
13.1	0.45	15	47	68	0.71	3.135	2.384	0.250	1.716	0.720	0.094	1.121	1439	22	1445	32	+1
BRP - 03 Salmão Granite									UTM: 7456685 x 338634 23 K
1.1	-0.01	50.6	76	582	0.13	0.836	1.161	0.101	0.872	0.751	0.060	0.763	622	5	599	17	-4
2.1	0.03	52.2	140	600	0.23	0.847	1.306	0.101	0.889	0.681	0.061	0.772	622	5	627	21	1
3.1	0.01	106.0	125	1219	0.10	0.846	1.058	0.101	0.911	0.861	0.061	0.533	622	5	625	12	1
4.1	-0.01	43.1	98	486	0.20	0.858	1.230	0.103	0.906	0.736	0.060	0.830	633	5	616	18	-3
5.1	-0.02	127.9	778	1451	0.54	0.859	0.990	0.103	0.845	0.853	0.061	0.474	630	5	628	11	0
6.1	0.35	33.8	89	389	0.23	0.847	2.182	0.101	0.897	0.411	0.064	1.193	619	5	639	43	3
7.1	-0.09	13.4	38	60	0.64	3.716	3.427	0.262	2.173	0.634	0.102	1.833	1501	29	1675	49	12
8.1	6.14	4.0	56	43	1.30	0.890	26.819	0.100	2.218	0.083	0.114	8.213	616	13	754	564	22
9.1	-0.10	51.2	91	581	0.16	0.849	1.330	0.103	0.875	0.657	0.059	0.763	630	5	603	22	-4
10.1	0.01	36.6	105	440	0.24	0.823	1.362	0.097	0.890	0.653	0.062	0.988	595	5	665	22	12
11.1	0.01	43.9	86	505	0.17	0.853	1.613	0.101	0.883	0.548	0.061	1.231	621	5	648	29	4
12.1	0.03	40.6	71	152	0.47	4.654	2.157	0.311	1.808	0.838	0.109	1.139	1744	28	1777	21	2
13.1	0.22	218.8	414	3039	0.14	0.696	1.075	0.084	0.833	0.775	0.062	0.365	518	4	615	15	19
14.1	0.41	66.9	83	501	0.17	1.997	2.504	0.155	1.048	0.418	0.097	2.021	927	9	1502	43	62
15.1	0.59	18.6	47	204	0.23	0.879	3.961	0.106	0.996	0.252	0.065	2.005	647	6	618	83	-4
16.1	0.01	27.7	331	328	1.01	0.864	1.435	0.098	0.956	0.667	0.064	1.004	604	6	734	23	22
BRP - 08 Bragança Paulista									UTM: 7479933 x 3350622 23 K
1.1	0.10	21.0	0.10	258	0.39	0.784	1.559	0.095	0.944	0.606	0.061	1.173	583.5	5.3	604	27	3
2.1	0.12	27.5	0.12	312	0.34	0.850	1.547	0.102	0.919	0.594	0.061	0.984	628.5	5.5	611	27	-3
2.2	1.91	13.9	1.91	172	0.70	0.754	7.938	0.092	1.367	0.172	0.075	3.599	568.7	7.4	578	170	2
3.1	0.18	17.7	0.18	209	0.66	0.804	2.217	0.099	0.984	0.444	0.061	1.292	606.6	5.7	570	43	-6
4.1	0.20	18.0	0.20	202	0.58	0.889	2.250	0.104	0.958	0.426	0.064	1.153	635.4	5.8	682	43	7
5.1	-0.12	14.7	-0.12	171	0.67	0.842	2.210	0.100	1.015	0.459	0.060	1.406	616.3	6.0	634	42	3
5.2	0.34	21.7	0.34	274	1.45	0.756	2.667	0.092	0.970	0.364	0.062	1.196	566.8	5.3	592	54	4
6.1	0.08	86.9	0.08	1001	0.31	0.831	1.094	0.101	0.859	0.786	0.060	0.602	620.1	5.1	592	15	-5
7.1	-0.06	26.3	-0.06	312	0.23	0.802	1.417	0.098	0.953	0.672	0.059	1.052	602.7	5.5	581	23	-4
8.1	0.16	43.0	0.16	525	0.91	0.775	1.490	0.095	0.899	0.604	0.060	0.829	586.5	5.0	567	26	-3
9.1	0.08	23.6	0.08	271	0.84	0.845	1.765	0.101	0.982	0.556	0.061	1.132	621.2	5.8	626	32	1
10.1	0.18	13.8	0.18	164	0.50	0.811	1.890	0.098	1.017	0.538	0.062	1.436	600.6	5.8	612	34	2
11.1	2.20	11.2	2.20	131	0.57	0.809	8.604	0.097	1.171	0.136	0.078	3.094	598.9	6.6	614	184	2
12.1	1.27	14.9	1.27	178	0.52	0.800	5.567	0.096	1.065	0.191	0.071	1.283	590.6	6.0	619	118	5
12.2	0.06	56.8	0.06	671	0.29	0.820	1.309	0.098	0.869	0.664	0.061	0.739	605.5	5.0	619	21	2
13.1	0.62	18.1	0.62	208	0.93	0.837	3.051	0.101	0.999	0.327	0.065	1.250	619.1	5.9	611	62	-1
14.1	0.00	26.1	0.00	298	0.69	0.863	1.421	0.102	0.935	0.658	0.061	1.069	626.7	5.6	650	23	4
15.1	0.09	23.6	0.09	276	0.58	0.818	2.137	0.099	0.951	0.445	0.060	1.142	611.4	5.5	591	42	-3
16.1	0.75	22.9	0.75	272	0.64	0.805	3.562	0.097	0.946	0.266	0.066	2.077	597.4	5.4	609	74	2
16.2	0.17	81.9	0.17	963	0.36	0.816	1.223	0.099	0.861	0.703	0.061	0.581	607.4	5.0	599	19	-1
17.1	-0.14	26.8	-0.14	291	0.73	0.901	1.671	0.107	0.931	0.557	0.060	1.025	656.6	5.8	637	30	-3
BRP - 12 Socorro Charnockite									UTM: 7504203 33458703 23 K
1.1	-0.03	28.3	142	328	0.45	0.850	1.367	0.101	0.915	0.669	0.061	1.004	617.6	5.4	651	22	5
2.1	0.14	38.0	168	447	0.39	0.840	1.551	0.099	0.883	0.569	0.063	0.816	607.3	5.1	662	27	9
3.1	0.01	44.1	531	499	1.10	0.869	1.457	0.103	1.133	0.778	0.061	0.828	631.4	6.8	649	20	3
4.1	0.14	17.5	46	203	0.24	0.834	2.787	0.100	0.994	0.357	0.062	1.325	615.0	5.8	618	56	1
5.1	0.15	11.1	8	122	0.06	0.874	2.138	0.105	1.073	0.502	0.061	1.763	646.0	6.6	608	40	-6
6.1	0.03	37.7	305	430	0.73	0.857	1.402	0.102	0.900	0.642	0.061	0.921	626.6	5.4	636	23	2
7.1	-0.03	35.7	173	397	0.45	0.874	1.291	0.105	0.897	0.695	0.060	0.898	641.9	5.5	624	20	-3
8.1	0.17	15.3	119	167	0.73	0.910	2.573	0.106	1.016	0.395	0.063	1.493	651.6	6.3	675	51	4
9.1	0.07	41.6	476	459	1.07	0.880	1.348	0.105	0.886	0.657	0.061	0.820	645.8	5.4	624	22	-3
10.1	0.05	8.7	119	95	1.29	0.936	4.122	0.106	1.178	0.286	0.064	1.823	651.3	7.3	738	84	13
11.1	0.01	46.9	293	513	0.59	0.899	1.203	0.106	0.879	0.731	0.061	0.779	652.0	5.4	647	18	-1
11.2	0.55	4.2	86	48	1.87	0.845	10.384	0.103	1.973	0.190	0.064	2.562	632.3	11.8	585	221	-8
12.1	0.00	58.0	289	619	0.48	0.918	1.107	0.109	0.865	0.782	0.061	0.689	667.1	5.5	641	15	-4
12.2	0.00	14.8	79	157	0.52	0.919	1.907	0.110	1.209	0.634	0.061	1.475	672.0	7.7	628	32	-7
13.1	0.15	15.2	268	169	1.63	0.871	1.817	0.104	1.014	0.558	0.062	1.372	640.7	6.2	620	33	-3
14.1	-0.01	28.0	146	320	0.47	0.837	4.749	0.102	4.627	0.974	0.059	1.039	625.3	27.6	588	23	-6

Sample	Unit	Rock type	Mineral	Analytical Method	Age	Error	Reference
Socorro Batholith
1. BRP - 12	Socorro Charnockite	Charnockito	Zircon	SHRIMP	641	4	This study
2. ATB - 08	Atibaia Charnockite	Charnockito	Zircon	SHRIMP	633	6	This study
3. BRP - 03	Salmão	Bt syenogranite	Zircon	SHRIMP	624	4	This study
4. ATB - 13	Bragança Paulista	Bt syenogranite	Zircon	SHRIMP	608	6	This study
5. BRP - 08	Bragança Paulista	Hbl-bt granite	Zircon	SHRIMP	610	7	This study
6. H3	Bragança Paulista	Granite	Zircon	TIMS	610	10	*Ebert et al. 1996*Ebert H.D., Chemale F., Babinski M., Artur A.C., Van Schmus W.R. 1996. Tectonic setting and U/Pb zircon dating of the plutonic Socorro Complex in the Transpressive Rio Paraíba do Sul Shear Belt, SE Brazil. Tectonics, 15(3):688-699. http://dx.doi.org/10.1029/95TC03247 http://dx.doi.org/10.1029/95TC03247...
7.	Bragança Paulista	Granite	Zircon	TIMS	629	3	Topfner 1996Topfner C. 1996. Brasiliano-granitoide in den Bundesstaaten São Paulo und Minas Gerais, Brasilieneine Vergleichende studie. Münchner, Münchner Geologische Hefte, v.17.
8. H621	Piracaia	Milonitic granitic gnaisse	Zircon	TIMS	642	1	*Hackspacher et al. 2003*Hackspacher P.C., Fetter A.H., Ebert H.D., Janasi V.D.A., Dantas E.L., de Oliveira M.A.F., Braga I.F., Negri F.D.A. 2003. Magmatismo há 660-640 Ma no Domínio Socorro: registros de convergência pré-colisional na aglutinação do Gondwana Ocidental. Geologia USP- Série Científica, 3(1):85-96. https://doi.org/10.5327/S1519-874X2003000100007 https://doi.org/10.5327/S1519-874X200300...
9. H705B	Piracaia	Orthogneiss	Zircon	TIMS	653	13	*Hackspacher et al. 2003*Hackspacher P.C., Fetter A.H., Ebert H.D., Janasi V.D.A., Dantas E.L., de Oliveira M.A.F., Braga I.F., Negri F.D.A. 2003. Magmatismo há 660-640 Ma no Domínio Socorro: registros de convergência pré-colisional na aglutinação do Gondwana Ocidental. Geologia USP- Série Científica, 3(1):85-96. https://doi.org/10.5327/S1519-874X2003000100007 https://doi.org/10.5327/S1519-874X200300...
10. H623A	Paraisópolis Complex	Granulite	Zircon	TIMS	646	7	*Hackspacher et al. 2003*Hackspacher P.C., Fetter A.H., Ebert H.D., Janasi V.D.A., Dantas E.L., de Oliveira M.A.F., Braga I.F., Negri F.D.A. 2003. Magmatismo há 660-640 Ma no Domínio Socorro: registros de convergência pré-colisional na aglutinação do Gondwana Ocidental. Geologia USP- Série Científica, 3(1):85-96. https://doi.org/10.5327/S1519-874X2003000100007 https://doi.org/10.5327/S1519-874X200300...
Serra da Água Limpa
10. RDTM 62	Facies 3	Porphyritic granite	Zircon	LA-ICPMS	667	10	*Vinagre et al. 2014*Vinagre R., Trouw R.A.J., Mendes J.C., Teixeira P.D., Peternel R., Matos G. 2014. New evidence of a magmatic arc in the southern Brasília Belt, Brazil: The Serra da Água Limpa batholith (Socorro-Guaxupé Nappe). Journal of South American Earth Sciences, 54:120-139. http://dx.doi.org/10.1016/j.jsames.2014.05.002 http://dx.doi.org/10.1016/j.jsames.2014....
11. RDPA 44 (SALB)	Facies 3	Porphyritic granite	Zircon	LA-ICPMS	645	5	*Vinagre et al. 2014*Vinagre R., Trouw R.A.J., Mendes J.C., Teixeira P.D., Peternel R., Matos G. 2014. New evidence of a magmatic arc in the southern Brasília Belt, Brazil: The Serra da Água Limpa batholith (Socorro-Guaxupé Nappe). Journal of South American Earth Sciences, 54:120-139. http://dx.doi.org/10.1016/j.jsames.2014.05.002 http://dx.doi.org/10.1016/j.jsames.2014....
12. RDPA 46 (SALB)	Facies 3	Porphyritic granite	Zircon	LA-ICPMS	630	12	*Vinagre et al. 2014*Vinagre R., Trouw R.A.J., Mendes J.C., Teixeira P.D., Peternel R., Matos G. 2014. New evidence of a magmatic arc in the southern Brasília Belt, Brazil: The Serra da Água Limpa batholith (Socorro-Guaxupé Nappe). Journal of South American Earth Sciences, 54:120-139. http://dx.doi.org/10.1016/j.jsames.2014.05.002 http://dx.doi.org/10.1016/j.jsames.2014....
13. VAC 10 (SALB)	Facies 4	Porphyritic granite	Zircon	LA-ICPMS	631	7	*Vinagre et al. 2014*Vinagre R., Trouw R.A.J., Mendes J.C., Teixeira P.D., Peternel R., Matos G. 2014. New evidence of a magmatic arc in the southern Brasília Belt, Brazil: The Serra da Água Limpa batholith (Socorro-Guaxupé Nappe). Journal of South American Earth Sciences, 54:120-139. http://dx.doi.org/10.1016/j.jsames.2014.05.002 http://dx.doi.org/10.1016/j.jsames.2014....
14. RDIT 41 (SALB)	Facies 5	Qtz-syenite	Zircon	LA-ICPMS	634	8	*Vinagre et al. 2014*Vinagre R., Trouw R.A.J., Mendes J.C., Teixeira P.D., Peternel R., Matos G. 2014. New evidence of a magmatic arc in the southern Brasília Belt, Brazil: The Serra da Água Limpa batholith (Socorro-Guaxupé Nappe). Journal of South American Earth Sciences, 54:120-139. http://dx.doi.org/10.1016/j.jsames.2014.05.002 http://dx.doi.org/10.1016/j.jsames.2014....
Agudos Grandes
15. PD - 313f	Turvo	Ms-Bt leucogranite	Monazite	TIMS	610	1	*Janasi et al. 2001*Janasi V.A., Leite R.J., van Schmus W.R. 2001. U-Pb chronostratigraphy of the granitic magmatism in the Agudos Grandes Batholith (west of Sao Paulo, Brazil) -- implications for the evolution of the Ribeira Belt. Journal of South American Earth Sciences, 14(4):363-376. http://dx.doi.org/10.1016/S0895-9811(01)00034-7 http://dx.doi.org/10.1016/S0895-9811(01)...
16. PD - 526	Ibiúna	Hbl-Bt monzogranite	Zircon	TIMS	610	2	*Janasi et al. 2001*Janasi V.A., Leite R.J., van Schmus W.R. 2001. U-Pb chronostratigraphy of the granitic magmatism in the Agudos Grandes Batholith (west of Sao Paulo, Brazil) -- implications for the evolution of the Ribeira Belt. Journal of South American Earth Sciences, 14(4):363-376. http://dx.doi.org/10.1016/S0895-9811(01)00034-7 http://dx.doi.org/10.1016/S0895-9811(01)...
17.PD - 462	Piedade	Ms-Bt granite	Monazite	TIMS	601	2	*Janasi et al. 2001*Janasi V.A., Leite R.J., van Schmus W.R. 2001. U-Pb chronostratigraphy of the granitic magmatism in the Agudos Grandes Batholith (west of Sao Paulo, Brazil) -- implications for the evolution of the Ribeira Belt. Journal of South American Earth Sciences, 14(4):363-376. http://dx.doi.org/10.1016/S0895-9811(01)00034-7 http://dx.doi.org/10.1016/S0895-9811(01)...
18. PD - 474b	Piedade	Bt granite	Zircon	TIMS	604	8	*Janasi et al. 2001*Janasi V.A., Leite R.J., van Schmus W.R. 2001. U-Pb chronostratigraphy of the granitic magmatism in the Agudos Grandes Batholith (west of Sao Paulo, Brazil) -- implications for the evolution of the Ribeira Belt. Journal of South American Earth Sciences, 14(4):363-376. http://dx.doi.org/10.1016/S0895-9811(01)00034-7 http://dx.doi.org/10.1016/S0895-9811(01)...
19.PD - 420	Piedade	Bt granite	Zircon	TIMS	605	7	*Janasi et al. 2001*Janasi V.A., Leite R.J., van Schmus W.R. 2001. U-Pb chronostratigraphy of the granitic magmatism in the Agudos Grandes Batholith (west of Sao Paulo, Brazil) -- implications for the evolution of the Ribeira Belt. Journal of South American Earth Sciences, 14(4):363-376. http://dx.doi.org/10.1016/S0895-9811(01)00034-7 http://dx.doi.org/10.1016/S0895-9811(01)...
20.PD - 498	Roseira	Bt granite	Monazite	TIMS	600	4	*Leite et al. 2007*Leite R.J., Heaman L.M., Janasi V.A., Martins L., Creaser R.A. 2007. The late- to postorogenic transition in the Neoproterozoic Agudos Grandes Granite Batholith (Apiai Domain, SE Brazil): Constraints from geology, mineralogy, and U-Pb geochronology. Journal of South American Earth Sciences, 23(2-3):193-212. http://dx.doi.org/10.1016/j.jsames.2006.09.022 http://dx.doi.org/10.1016/j.jsames.2006....
21.PD - 2266	Serra dos Lopes	Bt granite	Monazite	TIMS	604	3	*Leite et al. 2007*Leite R.J., Heaman L.M., Janasi V.A., Martins L., Creaser R.A. 2007. The late- to postorogenic transition in the Neoproterozoic Agudos Grandes Granite Batholith (Apiai Domain, SE Brazil): Constraints from geology, mineralogy, and U-Pb geochronology. Journal of South American Earth Sciences, 23(2-3):193-212. http://dx.doi.org/10.1016/j.jsames.2006.09.022 http://dx.doi.org/10.1016/j.jsames.2006....
22.PD - 2154	Pilar do Sul	Ms-Bt granite	Monazite	TIMS	600	4	*Leite et al. 2007*Leite R.J., Heaman L.M., Janasi V.A., Martins L., Creaser R.A. 2007. The late- to postorogenic transition in the Neoproterozoic Agudos Grandes Granite Batholith (Apiai Domain, SE Brazil): Constraints from geology, mineralogy, and U-Pb geochronology. Journal of South American Earth Sciences, 23(2-3):193-212. http://dx.doi.org/10.1016/j.jsames.2006.09.022 http://dx.doi.org/10.1016/j.jsames.2006....
Três Córregos (E)
23.E - 3	Barra do Chapéu	Foliated granite	Zircon	TIMS	610	3	*Gimenez Filho et al. 2000*Gimenez Filho A., Janasi V.A., Campanha G.A.C., Teixeira W., Trevizoli Júnior L.E. 2000. U-Pb dating and Rb-Sr isotope geochemistry of the eastern portion of the Três Córregos Batholilth, Ribeira Fold Belt, São Paulo. Revista Brasileira de Geociências, 30(1):45-50.
24.MN - 15	Barra do Chapéu	Hbl-Bt orthogneiss	Zircon	TIMS	608	5	*Gimenez Filho et al. 2000*Gimenez Filho A., Janasi V.A., Campanha G.A.C., Teixeira W., Trevizoli Júnior L.E. 2000. U-Pb dating and Rb-Sr isotope geochemistry of the eastern portion of the Três Córregos Batholilth, Ribeira Fold Belt, São Paulo. Revista Brasileira de Geociências, 30(1):45-50.
25.S - 1	Saival	Hbl-Bt granite	Zircon	TIMS	605	2	*Gimenez Filho et al. 2000*Gimenez Filho A., Janasi V.A., Campanha G.A.C., Teixeira W., Trevizoli Júnior L.E. 2000. U-Pb dating and Rb-Sr isotope geochemistry of the eastern portion of the Três Córregos Batholilth, Ribeira Fold Belt, São Paulo. Revista Brasileira de Geociências, 30(1):45-50.
Três Córregos (W)
26. HP - 06	Paina	Hbl-Bt tonalite	Zircon	SHRIMP	645	10	Prazeres Filho 2005
27.HP - 07	Arrieiros - Cerro Azul	Hbl-Bt granodiorite	Zircon	SHRIMP	610	3	Prazeres Filho 2005
28.HP - 121	Arrieiros - Cerro Azul	Granodiorite	Zircon	TIMS	617	2	*Prazeres Filho et al. 2003*Prazeres Filho H.J., Harara O.M., Basei M.A.S., Passarelli C.R., Siga Jr. O. 2003. Litoquímica, geocronologia U-Pb e geologia isotópica (Sr-Nd-Pb) das rochas graníticas dos batólitos Cunhaporanga e Três Córregos na porção sul do Cinturão Ribeira, Estado do Paraná. Geologia USP- Série Científica, 3:51-70. https://doi.org/10.5327/S1519-874X2003000100005 https://doi.org/10.5327/S1519-874X200300...
29.HP - 44	São Sebastião	Hbl-Bt qtz monzonite	Zircon	SHRIMP	601	22	Prazeres Filho 2005
30.HP - 44	São Sebastião	Hbl-Bt qtz monzonite	Zircon	TIMS	604	4	*Prazeres Filho et al. 2003*Prazeres Filho H.J., Harara O.M., Basei M.A.S., Passarelli C.R., Siga Jr. O. 2003. Litoquímica, geocronologia U-Pb e geologia isotópica (Sr-Nd-Pb) das rochas graníticas dos batólitos Cunhaporanga e Três Córregos na porção sul do Cinturão Ribeira, Estado do Paraná. Geologia USP- Série Científica, 3:51-70. https://doi.org/10.5327/S1519-874X2003000100005 https://doi.org/10.5327/S1519-874X200300...
Cunhaporanga
31.HP - 03	Ribeirão Butiá	Monzogranite	Zircon	TIMS	591	3	Prazeres Filho 2006Prazeres Filho H.J. 2006. Caracterização geológica e petrogenética do batólito granítico Três Córregos (PR-SP): geoquímica isotópica (Nd-Sr-Pb), idades (ID-TIMS/SHRIMP) e ‘delta18’O em zircão. PhD Thesis, Universidade de São Paulo, São Paulo, 207pp.
32.HP - 437	Ribeirão Butiá-Pitangui	Qtz-monzodiorite	Zircon	SHRIMP	601	7	Prazeres Filho 2006Prazeres Filho H.J. 2006. Caracterização geológica e petrogenética do batólito granítico Três Córregos (PR-SP): geoquímica isotópica (Nd-Sr-Pb), idades (ID-TIMS/SHRIMP) e ‘delta18’O em zircão. PhD Thesis, Universidade de São Paulo, São Paulo, 207pp.
33.HP - 21	Piraí do Sul	Monzogranite	Zircon	TIMS	601	7	*Prazeres Filho et al. 2003*Prazeres Filho H.J., Harara O.M., Basei M.A.S., Passarelli C.R., Siga Jr. O. 2003. Litoquímica, geocronologia U-Pb e geologia isotópica (Sr-Nd-Pb) das rochas graníticas dos batólitos Cunhaporanga e Três Córregos na porção sul do Cinturão Ribeira, Estado do Paraná. Geologia USP- Série Científica, 3:51-70. https://doi.org/10.5327/S1519-874X2003000100005 https://doi.org/10.5327/S1519-874X200300...
São Roque Domain
34. SR -07	São Roque	Monzogranite	Zircon	SHRIMP	604	3	*Janasi et al. 2016*Janasi V.A., Andrade S., Vasconcellos A.C.B.C., Henrique-Pinto R., Ulbrich H.H.G.J. 2016. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain. Journal of South American Earth Sciences, 68:224-247. http://dx.doi.org/10.1016/j.jsames.2015.11.009 http://dx.doi.org/10.1016/j.jsames.2015....
35.MD42B	Cantareira	Syenogranite	Zircon	SHRIMP	592	4	*Janasi et al. 2016*Janasi V.A., Andrade S., Vasconcellos A.C.B.C., Henrique-Pinto R., Ulbrich H.H.G.J. 2016. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain. Journal of South American Earth Sciences, 68:224-247. http://dx.doi.org/10.1016/j.jsames.2015.11.009 http://dx.doi.org/10.1016/j.jsames.2015....
36.MD24	Fazenda Itahyê	Monzogranite	Zircon	SHRIMP	598	4	*Janasi et al. 2016*Janasi V.A., Andrade S., Vasconcellos A.C.B.C., Henrique-Pinto R., Ulbrich H.H.G.J. 2016. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain. Journal of South American Earth Sciences, 68:224-247. http://dx.doi.org/10.1016/j.jsames.2015.11.009 http://dx.doi.org/10.1016/j.jsames.2015....
37. JP-18	Vila dos Remédios	Qtz-syenite	Zircon	SHRIMP	590	4	*Janasi et al. 2016*Janasi V.A., Andrade S., Vasconcellos A.C.B.C., Henrique-Pinto R., Ulbrich H.H.G.J. 2016. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain. Journal of South American Earth Sciences, 68:224-247. http://dx.doi.org/10.1016/j.jsames.2015.11.009 http://dx.doi.org/10.1016/j.jsames.2015....
38. TICO-2	Tico-Tico	Granite	Zircon	LA-ICPMS	591	4	*Janasi et al. 2016*Janasi V.A., Andrade S., Vasconcellos A.C.B.C., Henrique-Pinto R., Ulbrich H.H.G.J. 2016. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain. Journal of South American Earth Sciences, 68:224-247. http://dx.doi.org/10.1016/j.jsames.2015.11.009 http://dx.doi.org/10.1016/j.jsames.2015....
39. CANT-6	Cantareira	Granite	Zircon	LA-ICPMS	599	4	*Janasi et al. 2016*Janasi V.A., Andrade S., Vasconcellos A.C.B.C., Henrique-Pinto R., Ulbrich H.H.G.J. 2016. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain. Journal of South American Earth Sciences, 68:224-247. http://dx.doi.org/10.1016/j.jsames.2015.11.009 http://dx.doi.org/10.1016/j.jsames.2015....
40.TAP-1	Taipas	Granite	Zircon	LA-ICPMS	602	6	*Janasi et al. 2016*Janasi V.A., Andrade S., Vasconcellos A.C.B.C., Henrique-Pinto R., Ulbrich H.H.G.J. 2016. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain. Journal of South American Earth Sciences, 68:224-247. http://dx.doi.org/10.1016/j.jsames.2015.11.009 http://dx.doi.org/10.1016/j.jsames.2015....
41.ITQ-2	Itaqui	Granite	Zircon	LA-ICPMS	594	5	*Janasi et al. 2016*Janasi V.A., Andrade S., Vasconcellos A.C.B.C., Henrique-Pinto R., Ulbrich H.H.G.J. 2016. Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: Insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain. Journal of South American Earth Sciences, 68:224-247. http://dx.doi.org/10.1016/j.jsames.2015.11.009 http://dx.doi.org/10.1016/j.jsames.2015....

Sociedade Brasileira de Geologia R. do Lago, 562 - Cidade Universitária, 05466-040 São Paulo SP Brasil, Tel.: (55 11) 3459-5940 - São Paulo - SP - Brazil
E-mail: sbgeol@uol.com.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Corresponding author.