Geochemistry, Sm-Nd isotopes and SHRIMP U-Pb geochronology of the Morro do Coco Granite (RJ, Brazil): another piece of the post-collisional magmatism of the Ribeira Belt

Bione, Fellippe Roberto Alves; Bongiolo, Everton Marques; Mendes, Julio Cezar; Roland, Camila Leão

doi:10.1590/2317-4889201920190010

Fellippe Roberto Alves Bione ^**Corresponding author.

Programa de Pós-graduação em Geologia, Instituto de Geociências, Universidade Federal do Rio de Janeiro - Rio de Janeiro (RJ), Brazil. E-mails: frbione.geo@gmail.com, embongiolo@hotmail.com, julio@geologia.ufrj.br

https://orcid.org/0000-0001-6638-5933

Everton Marques Bongiolo

Programa de Pós-graduação em Geologia, Instituto de Geociências, Universidade Federal do Rio de Janeiro - Rio de Janeiro (RJ), Brazil. E-mails: frbione.geo@gmail.com, embongiolo@hotmail.com, julio@geologia.ufrj.br

Instituto de Geociências, Universidade Federal do Rio Grande do Sul - Porto Alegre (RS), Brazil.

https://orcid.org/0000-0001-5250-7864

Julio Cezar Mendes

Programa de Pós-graduação em Geologia, Instituto de Geociências, Universidade Federal do Rio de Janeiro - Rio de Janeiro (RJ), Brazil. E-mails: frbione.geo@gmail.com, embongiolo@hotmail.com, julio@geologia.ufrj.br

https://orcid.org/0000-0002-4332-8802

Camila Leão Roland

Programa de Pós-graduação em Geoquímica, Instituto de Química, Universidade Federal Fluminense - Niterói (RJ), Brazil. E-mail: camila.leaoroland@gmail.com

https://orcid.org/0000-0002-5146-7992

*Corresponding author.

Author F. B. contributed with the geological mapping and sampling, the petrography, wrote all items of the paper since its first version, and treated and interpreted all the data; author E. B. also contributed with the mapping and sampling, helped with the writing of all items of the paper and data interpretation; author J. M. helped with the geological mapping, petrography, chemical analyses and helped improve the manuscript with some revision and suggestions; author C. R. helped in the geological mapping, sampling, petrography and geochemical data interpretation.

Competing interests: The authors declare no competing interests.

Figure 9. Multidimensional geotectonic classification diagram for acidic rocks based on major elements (m3, **Verma et al. 2012Verma S.K., Pandarinath K., Verma S.P. 2012. Statistical evaluation of tectonomagmatic discrimination diagrams for granitic rocks and proposal of new discriminant-function-based multi-dimensional diagrams for acid rocks. International Geology Review, 54(3):325-347. http://dx.doi.org/10.1080/00206814.2010.543784
http://dx.doi.org/10.1080/00206814.2010.... ) for Morro do Coco samples and a comparison with other post-collisional granitic intrusions found in Ribeira-Araçuaí Belts. Data from: Almeida (2010Almeida G.A. 2010. Revisão Petroquímica dos Granitóides Pós-Colisionais ocorrentes na Folha Baía de Guanabara (1:100000), RJ, Brasil. Undergraduate thesis, Instituto de Agronomia, Departamento de Geociências, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, 86 p.; Suruí), Valeriano (2012Valeriano C.M. 2012. Geologia e Recursos Minerais da Folha Baía de Guanabara, SF-23-ZB-IV, escala 1:100.000, Nota Explicativa. Programa Geologia do Brasil. Belo Horizonte, CPRM, 156 p.; Pedra Branca), Ribeiro (2006Ribeiro R. 2006. Estudo geológico e geoquímico preliminar do granito Silva Jardim, Rio de Janeiro. Monography, Departamento de Geologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 45 p.; Silva Jardim), Teixeira (2010Teixeira A.P.G. 2010. Estudos geoquímicos comparativos de granitos tardi a pós-colisionais no segmento central do Orógeno Ribeira no Estado do Rio de Janeiro. Monography, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 45 p.; Parati), Azevedo Sobrinho et al. (2011Azevedo Sobrinho J.M., Janasi V.A., Simonetti A., Heaman L.M., Santoro J., Diniz H.N. 2011. The Ilha Anchieta Quartz Monzonite: the southernmost expression of ca. 500 Ma post-collisional magmatism in the Ribeira Belt. Anais da Academia Brasileira de Ciências, 83(3):891-906. http://dx.doi.org/10.1590/S0001-37652011000300010
http://dx.doi.org/10.1590/S0001-37652011... ; Anchieta Island), Junho (1992Junho M.C.B. 1992. Contribuição à petrologia dos maciços graníticos da Pedra Branca, Frades e Nova Friburgo, Rio de Janeiro. PhD Thesis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 198 p.; Teresópolis), Potratz and Valeriano (2017Potratz G.L., Valeriano C.M. 2017. Petrografia e Litogeoquímica do Granito Itaoca, Município de Campos dos Goytacazes, RJ: O Representante Mais Jovem do Magmatismo Pós-Colisional da Faixa Ribeira. Geonomos, 25(1):1-13. https://doi.org/10.18285/geonomos.v25i1.908
https://doi.org/10.18285/geonomos.v25i1.... ; Itaoca), Bongiolo et al. (2016**Bongiolo E.M., Renac C., Piza P.D., Schmitt R.S., Mexias A.S. 2016. Origin of pegmatites and fluids at Ponta Negra (RJ, Brazil) during late-to post-collisional stages of the Gondwana Assembly. Lithos, 240-243:259-275. http://dx.doi.org/10.1016/j.lithos.2015.11.015
http://dx.doi.org/10.1016/j.lithos.2015.... ; Cajú).

	Combined ICP-AES and ICP-MS									XRF
	CLR-02A	CLR-02C	CLR-03A	CLR-03C	CLR-07C	CLR-80C	CLR-86C	CLR-87A	CLR-X	CLR-02	CLR-03	CLR-07	CLR-80	CLR-89
SiO₂	68.30	69.00	68.70	68.50	68.40	70.10	71.10	71.00	72.00	67.96	67.87	70.52	68.32	70.32
TiO₂	0.77	0.75	0.80	0.76	0.95	0.72	0.47	0.42	0.42	0.80	0.75	0.44	0.71	0.44
Al₂O₃	14.55	14.85	14.80	14.65	14.50	14.50	13.95	13.80	13.95	15.25	15.39	14.42	15.13	14.82
Fe₂O₃	2.98	2.95	3.03	2.98	3.61	2.78	2.84	2.66	2.71	3.14	3.03	2.78	2.66	2.65
MnO	0.02	0.02	0.03	0.02	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.03	0.03	0.03
MgO	0.93	0.95	0.93	0.91	1.02	0.83	0.58	0.51	0.51	0.97	0.94	0.55	0.82	0.53
CaO	2.16	2.17	2.22	2.17	2.19	2.11	1.80	1.66	1.69	2.08	2.03	1.55	1.98	1.79
K₂O	5.51	5.80	5.87	5.56	5.56	5.67	5.95	5.95	6.05	5.72	5.81	6.20	5.94	5.99
Na₂O	3.03	3.06	2.95	3.09	2.77	2.98	2.51	2.44	2.49	3.17	3.22	2.45	3.07	2.78
P₂O₅	0.20	0.19	0.22	0.20	0.26	0.17	0.11	0.10	0.11	0.19	0.18	0.09	0.15	0.09
SrO	0.06	0.06	0.05	0.05	0.04	0.03	0.02	0.02	0.02	-	-	-	-	-
BaO	0.25	0.26	0.26	0.24	0.22	0.18	0.13	0.12	0.12	-	-	-	-	-
L.O.I	0.96	0.83	0.77	0.87	0.89	0.93	0.87	0.83	0.84	0.71	0.79	0.91	0.74	0.67
Total	99.72	100.89	100.63	100.00	100.45	101.03	100.36	99.54	100.94	100.01	100.03	99.94	99.55	100.11
ASI*	0.98	0.97	0.97	0.97	1.00	0.97	1.01	1.02	1.02	1.00	1.01	1.06	1.00	1.04
K*	0.54	0.55	0.57	0.54	0.57	0.56	0.61	0.62	0.62	0.54	0.54	0.62	0.56	0.59
CaO/Na₂O	0.71	0.71	0.75	0.70	0.79	0.71	0.72	0.68	0.68	0.66	0.63	0.63	0.64	0.64
Rb	205.00	206.00	245.00	203.00	238.00	230.00	246.00	242.00	255.00	76.00	74.00	187.00	171.00	182.00
Ba	2180.00	2270.00	2300.00	2130.00	1925.00	1555.00	1140.00	1005.00	1070.00	1933.00	1873.00	1196.00	1518.00	1195.00
Sr	506.00	512.00	487.00	486.00	386.00	327.00	207.00	186.00	197.50	426.00	389.00	62.00	275.00	168.00
Th	68.00	57.00	60.20	77.60	60.20	75.80	99.50	107.50	114.00	-	-	-	-	-
U	1.92	1.90	2.04	2.08	3.37	2.44	2.01	2.56	2.72	-	-	-	-	-
Zr	646.00	617.00	684.00	632.00	823.00	622.00	435.00	375.00	402.00	407.00	382.00	275.00	340.00	286.00
Ga	25.60	25.20	25.70	25.80	27.40	26.20	22.60	22.30	23.50	5.00	7.00	5.00	6.00	6.00
Nb	10.10	9.60	11.50	10.90	16.40	11.60	17.70	16.70	19.10	17.00	17.00	13.00	16.00	14.00
Ni	-	-	-	-	-	-	-	-	-	35.00	33.00	34.00	35.00	33.00
Co	-	-	-	-	-	-	-	-	-	9.00	10.00	11.00	11.00	11.00
Zn	-	-	-	-	-	-	-	-	-	28.00	24.00	28.00	31.00	24.00
V	46.00	46.00	48.00	46.00	49.00	39.00	24.00	20.00	23.00	69.00	69.00	51.00	68.00	51.00
Cr	20.00	10.00	20.00	10.00	10.00	20.00	< 10	20.00	20.00	12.00	38.00	3.00	35.00	23.00
Sn	2.00	3.00	3.00	3.00	4.00	2.00	2.00	2.00	3.00	-	-	-	-	-
La	229.00	199.50	234.00	272.00	201.00	205.00	232.00	229.00	241.00	-	-	-	-	-
Ce	434.00	381.00	439.00	511.00	396.00	403.00	460.00	453.00	478.00
Pr	42.90	38.20	43.90	50.80	42.30	40.80	47.20	47.20	49.80	-	-	-	-	-
Nd	133.00	122.00	136.50	159.50	141.50	131.00	151.00	150.50	159.00	-	-	-	-	-
Sm	14.35	14.25	15.15	18.00	17.05	15.00	19.35	19.45	20.60	-	-	-	-	-
Eu	2.01	1.98	2.12	2.19	2.33	1.63	1.70	1.60	1.74	-	-	-	-	-
Gd	6.13	5.90	6.67	7.34	7.50	6.22	9.42	9.54	10.15	-	-	-	-
Tb	0.61	0.59	0.66	0.76	0.84	0.68	1.00	1.01	1.06	-	-	-	-	-
Dy	2.35	2.35	2.71	3.04	3.55	2.66	4.15	3.77	3.97	-	-	-	-	-
Ho	0.37	0.34	0.42	0.46	0.56	0.43	0.59	0.55	0.57	-	-	-	-	-
Er	0.84	0.83	0.97	0.96	1.27	0.90	1.32	1.09	1.19	-	-	-	-	-
Tm	0.10	0.09	0.10	0.13	0.17	0.11	0.15	0.13	0.15	-	-	-	-	-
Yb	0.57	0.43	0.67	0.61	0.94	0.59	0.82	0.75	0.79	-	-	-	-	-
Lu	0.07	0.07	0.09	0.07	0.12	0.09	0.11	0.11	0.11	-	-	-	-	-
Y	9.10	9.30	10.60	10.90	15.00	10.30	15.20	13.50	14.50	14.00	14.00	16.00	14.00	15.00
Cs	1.26	0.87	1.50	0.90	1.36	0.85	0.83	1.20	1.23	-	-	-	-	-
Ta	0.70	0.80	0.90	0.80	1.10	1.00	1.00	0.70	1.80	-	-	-	-	-
Hf	15.60	14.20	15.60	15.00	19.30	15.40	12.10	10.90	11.20	-	-	-	-	-
Rb/Sr	0.41	0.40	0.50	0.42	0.62	0.70	1.19	1.30	1.29	-	-	-	-	-
Ba/Rb	10.63	11.02	9.39	10.49	8.09	6.76	4.63	4.15	4.20	-	-	-	-	-
La/Yb_(N)	270.86	312.79	235.46	300.62	144.16	234.25	190.75	205.85	205.67	-	-	-	-

Magma type, Figure name	Figure type	Total number of samples	Number of discriminated samples
			Arc			CR+OI [x ± s] [p_CR+OI] Θ	Col [x ± s] [p_Col] Θ
			IA+CA [x ± s] [p_IA+CA] Θ	IA [x ± s] [p_IA] Θ	CA [x ± s] [p_CA] Θ	CR+OI [x ± s] [p_CR+OI] Θ	Col [x ± s] [p_Col] Θ
Acid; *Verma et al.* (2012**Verma S.K., Pandarinath K., Verma S.P. 2012. Statistical evaluation of tectonomagmatic discrimination diagrams for granitic rocks and proposal of new discriminant-function-based multi-dimensional diagrams for acid rocks. International Geology Review, 54(3):325-347. http://dx.doi.org/10.1080/00206814.2010.543784 http://dx.doi.org/10.1080/00206814.2010.... ); log-ratios of all major elements	(IA+CA-CR-Col)	14	0 (0)	---	---	0 (0)	14 [0.864 ± 0.074] (0.6729-0.9931)
	(IA-CA-CR)	14	---	0 (0)	1 (0.6912)	13 [0.744 ± 0.102] (0.5708-0.8993)	---
	(IA-CA-Col)	14	---	0 (0)	0 (0)	---	14 [0.9745 ± 0.0155] (0.9456-0.9980)
	(IA-CR-Col)	14	---	0 (0)	---	0 (0)	14 [0.855 ± 0.063] (0.6885-0.9849)
	(CA-CR-Col)	14	---	---	0 (0)	0 (0)	14 [0.804 ± 0.092] (0.5695-0.9869)
Diagrams based on log-ratios of major elements	{Σn} {Σprob} [%prob]	70	{0} {0} [0%]	{0} {0} [0%]	{1} {0.6912} [1%]	{13} {9.6726} [16%]	{56} {48.9627} [83%]
Acid; *Verma et al.* (2013**Verma S.P., Pandarinath K., Verma S.K., Agrawal S. 2013. Fifteen new discriminant-function-based multi-dimensional robust diagrams for acid rocks and their application to Precambrian rocks. Lithos, 168-169:113-123. http://dx.doi.org/10.1016/j.lithos.2013.01.014 http://dx.doi.org/10.1016/j.lithos.2013.... ); log-ratios of immobile trace elements	(IA+CA-CR+OI-Col)	9	0 (0)	---	---	0 (0)	9 [0.730 ± 0.161] (0.5400-0.9522)
	(IA-CA-CR+OI)	9	---	0 (0)	8 [0.99999 ± 0.00000] (1.0000-1.0000)	1 (0.7504)	---
	(IA-CA-Col)	9	---	0 (0)	1 (0.5528)	---	8 [0.734 ± 0.186] (0.5182-0.9670)
	(IA-CR+OI-Col)	9	---	0 (0)	---	0 (0)	9 [0.9957 ± 0.0126] (0.9621-1.0000)
	(CA-CR+OI-Col)	9	---	---	0 (0)	0 (0)	9 [0.767 ± 0.155] (0.5582-0.9618)
Diagrams based on log-ratios of immobile trace elements	{Σn} {Σprob} [%prob]	45	{0} {0} [0%]	{0} {0} [0%]	{9} {8.5527} [23%]	{1} {0.7504} [2%]	{35} {28.3084} [75%]

Grain spot	U (ppm)	Th (ppm)	²³² Th/ ²³⁸ U	Common ²⁰⁶Pb (%)	Rad ²⁰⁶Pb (ppm)	²⁰⁷ Pb/ ²³⁵ U	error (%)	²⁰⁶ Pb/ ²³⁸ U	error (%)	²⁰⁷ Pb/ ²⁰⁶ Pb	error (%)	error corr	²⁰⁶ Pb/ ²³⁸ U Age (Ma) 204 corr	error (1s)	²⁰⁷ Pb/ ²⁰⁶ Pb Age (Ma) 204 corr	error (1s)	Disc (%)
MC01-1.1	94	110	1.21	0.41	7.4	0.74	3.4	0.0914	1.6	0.0587	3.0	0.467	564.0	8.5	557.5	64.7	-1
MC01-2.1	169	332	2.03	0.28	11.1	0.61	3.9	0.0763	2.7	0.0579	2.9	0.674	474.1	12.2	526.7	63.9	11
MC01-3.1	128	239	1.92	0.29	8.8	0.63	3.4	0.0796	1.6	0.0574	3.0	0.458	493.8	7.4	508.1	66.5	3
MC01-4.1	237	72	0.32	0.00	19.6	0.79	1.8	0.0960	1.5	0.0597	1.0	0.827	591.1	8.3	594.4	21.7	1
MC01-5.1	219	227	1.07	0.03	15.2	0.64	2.6	0.0807	1.7	0.0577	2.0	0.645	500.2	8.1	516.6	43.6	3
MC01-6.1	132	216	1.68	0.47	9	0.63	3.5	0.0791	2.1	0.0581	2.8	0.597	490.5	9.9	533.1	61.5	9
MC01-7.1	142	258	1.87	-0.07	9.6	0.62	4.3	0.0785	1.6	0.0568	4.0	0.372	487.1	7.5	485.0	88.4	0
MC01-8.1	219	305	1.44	1.05	15.5	0.64	4.3	0.0812	1.5	0.0573	4.0	0.349	503.4	7.3	504.6	89.6	0
MC01-9.1	232	566	2.52	0.50	15.1	0.62	3.7	0.0753	2.0	0.0593	3.1	0.540	468.2	8.9	576.6	67.0	23
MC01-10.1	128	266	2.14	0.48	8.7	0.64	2.8	0.0784	1.5	0.0589	2.3	0.554	486.8	7.2	563.4	50.5	16
MC01-11.1	155	293	1.96	0.23	10.6	0.64	2.3	0.0793	1.5	0.0588	1.7	0.670	492.0	7.2	559.5	36.5	14
MC01-12.1	145	298	2.12	0.51	10.3	0.65	3.4	0.0824	1.5	0.0575	3.0	0.448	510.5	7.5	509.8	67.1	0
MC01-13.1	179	397	2.29	0.43	12.1	0.62	3.1	0.0785	1.5	0.0571	2.7	0.490	487.1	7.1	495.5	59.1	2
MC01-14.1	180	396	2.28	0.43	12.5	0.64	3.0	0.0805	1.6	0.0581	2.5	0.528	498.8	7.5	532.5	55.1	7
MC01-15.1	209	447	2.21	-0.09	14.2	0.65	2.0	0.0791	1.6	0.0601	1.2	0.813	490.6	7.6	605.8	24.9	23
MC01-16.1	200	370	1.91	0.76	13.6	0.64	3.9	0.0783	1.5	0.0593	3.6	0.386	486.0	7.1	578.7	78.6	19
MC01-17.1	451	70	0.16	0.01	31.7	0.65	1.7	0.0819	1.4	0.0572	0.8	0.876	507.3	7.1	500.4	17.6	-1

Sample	Sm (ppm)	Nd (ppm)	¹⁴⁷ Sm/ ¹⁴⁴ Nd	error (2s)	(¹⁴³Nd/¹⁴⁴Nd)₀	εNd₍₀₎	(¹⁴³Nd/¹⁴⁴Nd)_t	εNd_(t)	T_DM (Ga)	t (Ga)
CLR-02C	16	150	0.067880	0.00040	0.511752	-17.3	0.511532	-9.15	1.35	0.5
CLR-07C	16	113	0.064385	0.00038	0.511747	-17.4	0.511538	-9.03	1.32	0.5

Unit	Suite	Age	Error	Method		Reference
Guarujá-Santos	-	497	7	U-Pb SHRIMP	zircon	*Janasi et al. (2015*Janasi V.A., Vasconcellos A.C.B.C., Siga Júnior O., Sato K., Machado F.B., Martins L., Garcia M.G.M. 2015. In situ U-Pb dating and Hf isotope geochemistry of zircons from granites of the Costeiro Domain, SE Brazil: timing and source contrasts with neighboring terranes of the Ribeira Belt. In: Hutton Symposium on Granites and Related Rocks, 8., Florianópolis. Annals…, v. 1, p. 69.)
Anchieta	-	499.7	5.9	LA-ICPMS	zircon	*Azevedo Sobrinho et al. (2011*Azevedo Sobrinho J.M., Janasi V.A., Simonetti A., Heaman L.M., Santoro J., Diniz H.N. 2011. The Ilha Anchieta Quartz Monzonite: the southernmost expression of ca. 500 Ma post-collisional magmatism in the Ribeira Belt. Anais da Academia Brasileira de Ciências, 83(3):891-906. http://dx.doi.org/10.1590/S0001-37652011000300010 http://dx.doi.org/10.1590/S0001-37652011... )
Parati	Suruí	500	-	U-Pb	zircon	*Ludka et al. (2006*Ludka I.P., Mendes J.C., Penha H.M., Belmonte S., Almeida T. 2006. Considerações geoquímicas e idade U-Pb do Granito Parati, sul do estado do Rio de Janeiro. In: Congresso Brasileiro de Geologia, 43., Aracaju. Annals..., p. 253.)
Pedra Branca	Suruí	513	5	ID-TIMS	zircon	Heilbron and Machado (2003Heilbron M., Machado N. 2003. Timing of terrane accretion in the Neoproterozoic-Eopaleozoic Ribeira orogen (SE Brazil). Precambrian Research, 125(1-2):87-112. http://dx.doi.org/10.1016/S0301-9268(03)00082-2 http://dx.doi.org/10.1016/S0301-9268(03)... )
Vila Dois Rios	Suruí	?	-	-	-	Fernandes (2000Fernandes G.A. 2000. Contribuição ao Entendimento Geológico do Terreno Oriental da Faixa Ribeira na Baía da Ilha Grande, litoral sul fluminense, RJ. Dissertation, Faculdade de Geologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 138 p.); *Eirado et al. (2006*Eirado L.G., Heilbron M., Almeida J.C.H. 2006. Os terrenos tectônicos da Faixa Ribeira na Serra da Bocaina e na Baía da Ilha Grande, sudeste do Brasil. Revista Brasileira de Geociências, 36(3):426-436.)
Suruí	Suruí	512	7	LA-ICPMS	zircon	*Valeriano et al. (2011*Valeriano C.M., Tupinambá M., Simonetti A., Heilbron M., Almeida J., Eirado Silva L. 2011. U-Pb LA-MC-ICPMS geochronology of Cambro-Ordovician post-collisional granites of the Ribeira Belt, southeast Brazil: Terminal Brasiliano magmatism in central Gondwana supercontinent. Journal of South American Earth Sciences, 32(4):416-428. http://dx.doi.org/10.1016/j.jsames.2011.03.003 http://dx.doi.org/10.1016/j.jsames.2011.... )
Silva Jardim	Suruí	505	2	LA-ICPMS	zircon	Moraes (2009Moraes J.M. 2009. Geologia do Granito Silva Jardim (RJ): Implicações na evolução tectônica dos Terrenos Oriental e Cabo Frio. Thesis, Universidade Estadual do Rio de Janeiro, Rio de Janeiro, 65 p.)
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Favela	Nova Friburgo	482	6	LA-ICPMS	zircon	Heilbron and Machado (2003Heilbron M., Machado N. 2003. Timing of terrane accretion in the Neoproterozoic-Eopaleozoic Ribeira orogen (SE Brazil). Precambrian Research, 125(1-2):87-112. http://dx.doi.org/10.1016/S0301-9268(03)00082-2 http://dx.doi.org/10.1016/S0301-9268(03)... )
Andorinha	Nova Friburgo	490	9	LA-ICPMS	zircon	*Valeriano et al. (2011*Valeriano C.M., Tupinambá M., Simonetti A., Heilbron M., Almeida J., Eirado Silva L. 2011. U-Pb LA-MC-ICPMS geochronology of Cambro-Ordovician post-collisional granites of the Ribeira Belt, southeast Brazil: Terminal Brasiliano magmatism in central Gondwana supercontinent. Journal of South American Earth Sciences, 32(4):416-428. http://dx.doi.org/10.1016/j.jsames.2011.03.003 http://dx.doi.org/10.1016/j.jsames.2011.... )
Teresópolis/Frades	Nova Friburgo	481	6	LA-ICPMS	zircon	*Valeriano et al. (2011*Valeriano C.M., Tupinambá M., Simonetti A., Heilbron M., Almeida J., Eirado Silva L. 2011. U-Pb LA-MC-ICPMS geochronology of Cambro-Ordovician post-collisional granites of the Ribeira Belt, southeast Brazil: Terminal Brasiliano magmatism in central Gondwana supercontinent. Journal of South American Earth Sciences, 32(4):416-428. http://dx.doi.org/10.1016/j.jsames.2011.03.003 http://dx.doi.org/10.1016/j.jsames.2011.... )
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Conselheiro Paulino	Nova Friburgo	?	-	-	-	Pacheco (2010Pacheco B.T. 2010. Caracterização petrográfica e geoquímica das rochas do Corpo de Conselheiro Paulino (Suíte Nova Friburgo) na Região Serrana do Estado do Rio de Janeiro, RJ. Monography, Universidade Estadual do Rio de Janeiro, Rio de Janeiro, 51 p.)
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Sana	Nova Friburgo	491	10	LA-ICPMS	zircon	*Valeriano et al. (2011*Valeriano C.M., Tupinambá M., Simonetti A., Heilbron M., Almeida J., Eirado Silva L. 2011. U-Pb LA-MC-ICPMS geochronology of Cambro-Ordovician post-collisional granites of the Ribeira Belt, southeast Brazil: Terminal Brasiliano magmatism in central Gondwana supercontinent. Journal of South American Earth Sciences, 32(4):416-428. http://dx.doi.org/10.1016/j.jsames.2011.03.003 http://dx.doi.org/10.1016/j.jsames.2011.... )
São Pedro de Lumiar	Nova Friburgo	490	-	Inferred	-	*Mendes et al. (2011*Mendes J.C., Medeiros S.R., Chaves E.A. 2011. Assinatura isotópica de Sr e Nd do magmatismo cálcio-alcalino de alto-K na Faixa Ribeira central: o exemplo do Granito São Pedro em Lumiar. RJ. Revista Brasileira de Geociências, 41(3):408-419.)
Itaoca	Nova Friburgo	476	2	ID-TIMS	monazite	*Neto et al. (2014*Neto C.C.A., Valeriano C.M., Passarelli C.R., Heilbron M., Lobato M. 2014. Monazite ID-TIMS U-Pb geochronology in the LAGIR laboratory, Rio de Janeiro State University: protocols and first applications to the assembly of Gondwana supercontinent in SE-Brazil. Anais da Academia Brasileira de Ciências, 86(1):171-186. http://dx.doi.org/10.1590/0001-3765201420120005 http://dx.doi.org/10.1590/0001-376520142... )
Morro do Coco	Nova Friburgo	496	3	U-Pb SHRIMP	zircon	This work
Cajú	-	454	5	U-Pb SHRIMP	zircon	*Bongiolo et al. (2016*Bongiolo E.M., Renac C., Piza P.D., Schmitt R.S., Mexias A.S. 2016. Origin of pegmatites and fluids at Ponta Negra (RJ, Brazil) during late-to post-collisional stages of the Gondwana Assembly. Lithos, 240-243:259-275. http://dx.doi.org/10.1016/j.lithos.2015.11.015 http://dx.doi.org/10.1016/j.lithos.2015.... )
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Buarama	-	480	4	U-Pb	zircon	*Söllner et al. (2000*Söllner F., Lammerer B., Wiedemann C.M. 2000. Dating the Ribeira Mobile Belt of Brazil. Zeitschrift für Angewandte Geologie, 245-255.)
Pedra Azul	-	536	31	Whole-rock Rb-Sr	-	Platzer (1997Platzer S. 1997. Whole-rock geochemistry of the Araçê/Pedra Azul pluton. Thesis, University of Utrecht, Netherlands, 58 p.)
Várzea Alegre	-	499	5	ID-TIMS	zircon	*Mendes et al. (2005*Mendes J.C., Medeiros S.R., McReath I., De Campos C.M.P. 2005. Cambro-Ordovician magmatism in SE Brazil: U-Pb and Rb-Sr ages, combined with Srand Nd isotopic data of charnockitic rocks from the Varzea Alegre complex. Gondwana Research, 8(3):337-345.)

[1] *Corresponding author.

Brasil

Brasil

Geochemistry, Sm-Nd isotopes and SHRIMP U-Pb geochronology of the Morro do Coco Granite (RJ, Brazil): another piece of the post-collisional magmatism of the Ribeira Belt

Abstract