DB-Chrono

Table Extracted from Johnson et al. (1997) with Reevaluation of the Original Analytical Data

N°	Category	Age Ma	Error	ROCK UNIT Pluton, suite or formation	ROCK TYPE	Method	SAMPLE type and points	MSWD	Sr Initial Ratio	Lower Intercept	SAMPLE NUMBER	LAT XX.XX° Decimal	LONG XX.XX° degrees	LOCATION country/ quadrangle/area	PRINCIPAL SOURCE
1	3	2360	±580	Fajirah gneiss	migmatite gneiss	U-Pb(c)	zr, monazite	180,00		720±140	363865	22,50	43,92	SA W. ar Rika GM51	Agar and others, 1992
2	3	2210		Uhaymir complex	anorthosite	Sm-Nd					Z-104	21,35	44,85	SA Jabal Khida GM90	Agar and others, 1992
3	3	2067	±74/72	Assaliyah cplx.	gabbro/tondh	U-Pb(c)	zircon 6			645±16	80-SA-4	23,45	45,10	SA Ar Rayn GM63	Calvez and others, 1985a,b
4	3	2050	±420	Sorayah cplx	basement gneiss	U-Pb(c)	zircon 4			579±50	363878	21,75	44,55	SA Jabal Khida GM90	Agar and others, 1992
5	3	2007	±14	Kabid gneiss	migmatite gneiss	U-Pb(c)	zircon 2			698±29	363867	22,75	43,50	SA W. ar Rika GM51	Agar and others, 1992
6	3	1986	±200	Umm ash Sharah	plagiogranite	U-Pb(c)	zircon				80-SA-40	23,45	45,10	SA Ar Rayn GM63	Calvez and others, 1983, 1984
7	3	1829	±45	Kabid formation	ga-sill gneiss	U-Pb(c)	detrital zr 6			471±94	363402	22,93	43,42	SA Zalm GM89	Stacey and Agar, 1985
8	3	1773	±32	Kabid formation	ga-sill gneiss	U-Pb(c)	detrital zr 4	0,65	0,7006	374±72	363402	22,93	43,42	SA Zalm GM89	Stacey and Agar, 1985
9	3	1660	±97	Muhayil pluton	charnockite	U-Pb(c)	zircon 4	24,30		161±680	363883	21,15	44,92	SA Jabal Khida GM90	Agar and others, 1992
10	3	1632	±208	Khida pluton	granodiorite	U-Pb(c)	zircon 4			658±107	Z-103	21,32	44,83	SA Jabal Khida GM90	Stoeser and Stacey, 1988
11	3	1628	±200	Khida pluton	granodiorite	U-Pb(c)	zircon 4			658±107	Z-103	21,32	44,83	SA Jabal Khida GM90	Stacey and Hedge, 1983, 1984
12	2	1165	±110	W. al Faqh	metabasalt	Rb-Sr	wr 3	0,28	0,7029		743-3H-J	20,37	40,25	SA Al Lith GM95	Fleck and others, 1980a,b
13	3	1025		Rumayda pluton	granite	Rb-Sr(m)	biotite					21,50	39,27	SA Makkah GM107	Aldrich, 1978
14	3	1010		Jabal Qusas	granite gneiss	Rb-Sr(m)	biotite					23,30	45,23	SA Ar Rayn GM63	Aldrich, 1978
15	3	965		Pegmatite	trondhjemite	Rb-Sr(m)	biotite					21,50	39,95	SA Makkah GM107	Aldrich, 1978
16	3	945	±28	Bustan complex	quartz di/gdr	Rb-Sr	wr 6	2,00	0,7025		HR2 3-12	22,93	39,17	SA Rabigh GM84	Al Shanti and others, 1983
17	3	944	±53	S. al Khayfan cplx	metagb/metadiorite	Rb-Sr	wr 7		0,7030		CP483-490	22,93	45,37	SA W. al Mulayh GM92	Calvez and Delfour, 1986
18	3	943		Bahah group: Jof fm.	metavolcanic rocks	Rb-Sr	wr					20,55	41,37	SA J Ibrahin 20E	Darbyshire and others, 1983
19	3	920	±200	Wadi Moss	biotite granite	Rb-Sr(m)	feld					28,58	35,06	SA Al Bad GM 81	Aldrich, 1978
20	3	912	±76	W. bin Dwaynah	andesite/dacite	Rb-Sr	wr 8	0,40	0,7024		742-24C-I	19,25	42,15	SA J. al Hasir GM94	Fleck and others, 1980a,b
21	3	911	±246	Baish group	metavolcanic rocks	Rb-Sr	wr							SA J. Ibrahim GM96	R.J. Fleck data, cited 1992
22	2	901	±37	Bidah pluton	tonalite	Rb-Sr	wr 9	2,86	0,7024		Aq 1-26	20,40	41,48	SA J. Ibrahim GM96	Marzouki and others, 1982
23	3	895	±173	Khadrah pluton	tonalite	Rb-Sr	wr 6	0,81	0,7025		743-3D-G	20,50	40,13	SA Al Lith GM95	Fleck and others, 1980a,b
24	3	893	±722	Baish group	metavolcanic rocks	Rb-Sr	wr							SA Wadi Baish	Kröner and others, 1992a
25	2	890	±67	Biljurshi pluton	tonalite	Rb-Sr	wr 3	0,05	0,7026		71-8-13H-J	19,92	41,62	SA Al Qunfudhah GM70	Fleck and others, 1980a,b
26	3	882	±12	Haj cplx (Wask oph)	granophyre	U-Pb (c)	zircon 3				JCB 336	25,25	38,02	SA Al Ays GM53	Kemp and others, 1980
27	3	880	±206	Baish group	metavolcanic rocks	Rb-Sr	wr							SA Wadi Bidah	Kröner and others, 1992a
28	3	870	±11	Thurwah ophiolite	gabbro	U-Pb(m)	zircon 1			15±15	175925+937	22,63	39,38	SA Rabigh GM84	Pallister and others, 1987,1988
29	3	854	±10	Dhara pluton	tonalite	Rb-Sr	wr 9	1,97	0,7016		SHq 1-9	20,30	41,18	SA J. Ibrahim GM96	Radain and others, 1987
30	3	853	±72	Ash Shaqah ash Sham.	tonalite/diorite	Rb-Sr	wr 8	1,61	0,7030		743-4G-N	20,33	40,93	SA J. Ibrahim GM96	Fleck and others, 1980a,b
31	3	848	±282	Biljurshi pluton	tonalite	Rb-Sr	wr 3	0,01	0,7030		J-667-632	19,52	41,98	SA Al qunfudhah GM70	Fleck and others, 1980a,b
32	1	847	±34	Kulada suite	basalt/ dacite	Rb-Sr	wr 4	1,74	0,7030		WL174-79,182	20,73	40,78	SA J. Ibrahim GM96	Kröner and others, 1983
33	3	847	±14	Bi'r Tuluhah oph	plagiogranite	U-Pb(m)	zircon 1			15±15	175585	25,68	40,80	SA Nuqrah GM28	Pallister and others,1987,1988
34	3	846	±22	Baish group	dacite clast	Pb-Pb(e)	zircon 1				197610	21,47	40,03	SA Al Lith GM95	Kröner and others, 1992a
35	5	845	±19	Ajal gneiss	ampphibolite/gneiss	Rb-Sr	wr 5	2,00	0,7029		T151-4,157	23,43	44,35	SA Halaban GM46	Abdel-Monem and others, 1989
36	3	843	±273	W. Makhdhul	tonalite	Rb-Sr	wr 3	0,01	0,7023		742-21F-H	18,37	44,00	SA Bi'r Idamah GM79	Fleck and others, 1980a,b
37	1	842	±17	Baish group	dacite (clast)	Pb-Pb(e)	zircon 3				197610	20,47	40,03	SA Al Lith GM95	Kröner and others, 1992a
38	3	841	±10	Baish group	dacite (clast)	Pb-Pb(e)	zircon 3				197610	21,47	40,03	SA Al Lith GM95	Kröner and others, 1992a
39	4	839	±23	Nuqrah formation	rhyolite	U-Pb(?)	zircon					25,58	41,13	SA Nuqrah GM28	Calvez and others, 1983, 1984
40	1	838	±93	Dhurah pluton	tonalite	Rb-Sr	wr 6	0,20	0,7026		794 IR-U2A-B	20,83	41,13	SA J. Ibrahim GM96	Fleck and Hadley, 1982
41	3	838	±12	Baish group	dacite (clast)	Pb-Pb(e)	zr 1	3,30			197610	21,47	40,03	SA Al Lith GM95	Kröner and others, 1992a
42	2	838	±10	Bi'r Umq ophiolite	diorite	U-Pb(m)	zircon 3	3,30		15±15	175471	23,92	40,88	SA M. adh Dhahab GM64	Pallister and others, 1988
43	1	837	±50	An Nimas batholith	tonalite	Rb-Sr	wr 4	0,48	0,7027		742-23F-I	19,05	42,20	SA J. al Hasir GM94	Fleck and others, 1980a,b
44	3	834	±7	Ablah group	metagraywacke	Pb-Pb(e)	detrital zr 1				WL 214	20,52	40,73	SA J Ibrahim GM96	Kröner and others, 1992a
45	1	831	±47	Sumayir fm (Arj gp)	basalt	Rb-Sr	wr 3	0,04	0,7033		SU 2-4	23,93	41,00	SA M. adh Dhahab GM64	Dunlop and others 1986
46	1	828	±47	Bir Umq ophiolite	gabbro/ trondhjemite	Sm-Nd	wr, pyrox 5	0,61			BU 1-2	23,95	40,98	SA M. adh Dhahab GM64	Dunlop and others, 1986
47	3	825		Mecca	pegmatite	Rb-Sr(m)	muscovite					21,53	40,02	SA Makkah GM107	Aldrich, 1978
48	3	823	±11	Bi'r Tuluhah oph	plagiogranite	U-Pb(m)	zircon 1			15±15	175585,88	25,68	40,80	SA Nuqrah GM28	Pallister and others,1987,1988
49	4	821	±48	Nuqrah formation	rhyolite	Rb-Sr	wr		0,7040		unknown			SA Nuqrah GM28	Calvez and others, 1983
50	1	821	±40	Iqwaq pluton	trondhjemite	Rb-Sr	wr 8	1,18	0,7023		A337-346	24,88	37,35	SA Al Buwanah GM62	Calvez and others 1982, 1983
51	1	821	±19	Sayah suite	dacite/rhyolite	Rb-Sr	wr 3	1,11	0,7032		WL37,40,44	20,57	40,03	SA Al Lith GM95	Kröner and others, 1983
52	2	818	±95	Nimas batholith	Tarj tonalite	Rb-Sr	wr 4	0,42	0,7028		743-6C-G	19,73	42,33	SA J. al Hasir GM94	Fleck and others, 1980a,b
53	3	817	±518	Milh complex	diorite	Rb-Sr	wr	0,04	0,7026			21,18	39,77	SA Makkah GM107	Fleck, 1985
54	1	816	±4	An Nimas batholith	tonalite	U-Pb(m)	zircon 5			15±15	112701	19,05	42,20	SA J. al Hasir GM94	Cooper and others, 1979a,b
55	1	816	±3	Dhukhr pluton	tonalite	U-Pb(c)	zircon 4			133±30	23 E-1	23,35	40,93	SA M. adh Dhahab GM64	Calvez and Kemp, 1982
56	2	815	±13	Shuqub pluton	diorite/tonalite	Rb-Sr	wr 6	1,81	0,7029		SH 2-7	20,17	41,28	SA J. Ibrahim GM96	Radain and others, 1987
57	3	812	±6	Ablah group	metagraywacke	Pb-Pb(e)	drtr. zr 1				WL 214	20,52	40,73	SA J Ibrahim GM96	Kröner and others, 1992a
58	1	811	±4	Furayhah batholith	leucotonalite	U-Pb(m)	zircon 3			15±15	175600	23,77	41,53	SA M. adh Dhahab GM64	Stoeser and Stacey, 1988
59	3	808	±95	Shuqub area	quartz diorite	Rb-Sr	wr		0,7029			20,75	41,25	SA J. Ibrahim GM96	Radain and Naseef, 1982
60	4	807	±8	Bustan complex	tonalite	U-Pb(?)	zircon					23,38	39,28	SA Umm al Birak GM87	Camp, 1986
62	1	797	±7	Wadi Bagarah	tonalite	U-Pb(m)	zircon 4			15±15	112674	18,97	42,00	SA Wadi Haliy GM74	Cooper and others, 1979
63	3	796	±23	Jar batholith	trondhjemite	U-Pb(c)	zircon 4				JCB 571	25,52	37,57	SA Al Ays GM53	Kemp and others, 1980
64	3	790		Sabya formation	quartzite	U-Pb	drtr. zr							SA Jizan area	L. Fischer, 1986, written commun.
65	3	786	±33	Lahuf andesite	andesite tuff	Rb-Sr	wr 6	3,10	0,7029			23,48	40,78	SA M. adh Dhahab GM64	Huckerby, 1984
66	2	785	±96	Junaynah volcs	andesite tuff	Rb-Sr	wr 3	0,02	0,7025		724-28J-L	20,13	42,85	SA Wadi Bishah GM97	Fleck and others, 1980a,b
67	3	785		Dhara pluton	quartz diorite	Rb-Sr(m)	biotite					20,72	41,23	SA J. Ibrahim GM96	Aldrich, 1978
68	5	784	±21	Mahd complex		Rb-Sr	wr 14	1,40	0,7028			23,48	40,78	SA M. adh Dhah. GM 64	Huckerby, 1984
69	3	782	±38	Ess ophiolite	gabbro	Sm-Nd	2	2,00			175578,403	26,42	37,60	SA S. al Matran GM86	Claesson and others, 1984a,b
70	1	782	±36	Ess ophiolite	gabbro	Sm-Nd	mineral 1	0,35			175578	26,42	37,60	SA S. al Matran GM86	Claesson and others, 1984a,b
71	3	782	±5	Bi'r Umq ophiolite	keratophyre	U-Pb(m)	zircon 1			15±15	175592 3(P8)	23,93	40,93	SA M. adh Dhahab GM64	Pallister and others,1987,1988
72	2	782	±4	E. Asir terrane	diorite gneiss	U-Pb(m)	zircon 5	1,14	0,7006	15±15	363410	22,18	42,32	SA Zalm GM89	Stacey and Agar, 1985
73	3	780	±11	Ess ophiolite	gabbro	U-Pb(m)	zircon 1			15±15	175578	26,37	37,70	SA S. al Matran GM86	Pallister and others,1987,1988
74	3	779	±49	Tharad pluton	tonalite/ trond dikes	Rb-Sr	wr 4	3,40	0,7026			20,20	41,75	SA J. Ibrahim GM96	Marzouki and others, 1982
75	1	778	±9	Bagarah pluton	granodiorite	U-Pb(m)	zircon			15±15	112672	18,73	42,03	SA Abha GM75	Cooper and others, 1979
76	5	776	±41	Mahd granodiorite	granodiorite	Rb-Sr	wr 8	2,50	0,7029			23,47	40,77	SA M. adh Dhah. GM 64	Huckerby, 1984
77	3	776	±9	Wask ophiolite	plagiogranite	U-Pb(?)	zircon 3				JCB 336	25,25	38,02	SA Wadi al Ays GM53	Ledru and Auge, 1984
78	1	774	±101	Furayhah batholith	tonalite gneiss	Rb-Sr	wr 7	0,07	0,7025		761 25J-26G	23,48	41,55	SA M. adh Dhahab GM64	Fleck and Hadley, 1982
79	3	774	±32	Milh complex	quartz diorite/gdr	Rb-Sr	wr 7		0,7026			21,37	40,27	SA Makkah GM107	Fleck, 1981, 1985
80	3	773	±16	Fatimah pluton	granite	Rb-Sr	wr 4	3,60	0,7023		FA 80	21,53	39,55	SA Makkah GM107	Duyverman and others, 1982
81	5	772	±36	Mahd amphibolite		Rb-Sr	wr 8	0,20	0,7028			23,50	40,77	SA M. adh Dhah. GM 64	Huckerby, 1984
82	3	772	±28	Mahd gp., Haf fm.	rhyolite	Rb-Sr	zircon 7	3,94	0,7034		79 SA 75-88	23,82	41,37	SA M. adh Dhahab GM64	Calvez and Kemp, 1982
83	3	772	±16	Wask ophiolite	gabbro	U-Pb(m)	zircon 1			15±15	175581	25,02	37,78	SA Wadi al Ays GM53	Pallister and others,1987,1988
84	3	771	±83	Ram Ram complex	gabbro	Rb-Sr(m)	wr 1					23,47	40,68	SA M. adh Dhah. GM 64	Huckerby, 1984
85	3	769	±39	As Sayl pluton	tonalite/granodiorite	Rb-Sr	wr 3	0,84	0,7028		794-5J-L	21,97	39,62	SA Makkah GM107	Fleck, 1981, 1985
86	1	769	±5	Ramram complex	granophyre	U-Pb(c)	zircon 4			0.0	79 SA 128	23,48	40,67	SA M. adh Dhahab GM64	Calvez and Kemp, 1982
87	1	766	±26	JuqJuq gneiss	orthogneiss	Rb-Sr	wr 6	1,99	0,7030		<