Analyses of Heavy-Mineral-Concent rate Samples, East Half of the Lewiston 1° x 2° Quadrangle


Open-File Report 83-739 1983 Prepared in cooperation with the Maine Geological Survey This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards. Any use of trade names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. 

Denver, Colorado

Table 2 .--Ana Iytica I results for nonmagnetic heavy-mineral-concentrate samples from the east half of the Lewiston 1-degree by 2-degree quadrangle/ Maine and New Hampshire 

INTRODUCTION

This report presents analytical data for nonmagnetic heavy-mineral-concentrate samples from 350 sites in the east half of the Lewiston, Maine 1° x 2° quadrangle. Most of the sampled sites are in Maine, but a few are in New Hampshire. The vast majority of the samples were collected in 1979, the remainder were collected in 1980. 
The sampling was done in cooperation with the Maine Geological Survey as part of the Conterminous United States Mineral Appraisal Program (CUSMAP) being carried out by the U.S. Geological Survey. The geochemical sampling reported here is only one facet of a multidisci pi inary mineral-resource evaluation of the Sherbrooke and Lewiston 1° x 2° quadrangles (fig. 1). Analytical results for 569 heavy-mineral concentrates collected from portions of the Lewiston quadrangle in north-central New Hampshire are listed by Domenico and others (1982). Geochemical data from the west half of the Lewiston quadrangle and from the southern portions of the Sherbrooke quadrangle are currently being prepared for publication. 
The data in this report are from nonmagnetic heavy-mineral-concentrate samples that were collected as part of a more extensive program of stream-sediment sampling (Nowlan and others, 1983). Heavy-mineral concentrates and stream-sediment samples were collected concurrently at 350 of the 2,244 sites reported by Nowlan and others (1983) in order to test the utility of heavy-mineral concentrates for reconnaissance geochemical work in the Lewiston quadrangle. 
Samples were collected by Frank Howd, Eric Carlson, Innes Carlson, Glen Daukas, Bill Foster, Tom Howd, Jeff Josephson, Blake Salmon, Mike Scully, Andy Sprecher, and Susan Zieminski, all of the Maine Geological Survey. Analyses were by J. A. Domenico and Betty Adrian of the U.S. Geological Survey. 

SAMPLE COLLECTION AND PREPARATION

Samples were generally collected from first-and second-order streams. Plate 1 is a plot of sampVing locations. Each sample consisted of approximately 20 Ibs (9 kg) of active sediment which was a composite of sediment collected from stream sites favorable for the concentration of heavy minerals. At the sampling site, the sediments were panned to remove most of the quartz, feldspar, clay, and organic material. The panned samples were then air dried and sieved to minus 25 mesh (0.71-mm). Each sample was then separated at a specific gravity of 2.86 with bromoform into a light fraction and a heavy fraction. The light fraction was discarded. Magnetite was then removed with a hand magnet. Ferromagnesian silicates and other slightly magnetic minerals, were removed by separation with a Frantz Isodynamic Separator set at 0.6 amperes with a 15° side and forward slope. The resultant nonmagnetic sample concentrate usually consists of light-colored rockaccessory minerals, such as zircon, and primary and secondary ore minerals (see Rosenblurn, 1958). 
The samples were randomized prior to preparation to minimize analytical bias due to sequential handling. The heavy-mineral-concentrate samples were analyzed for 31 elements using a semiquantitative, direct-current arc emission spectrographic method (Grimes and Marranzino, 1968). Spectrographic results are obtained by visual comparison of spectra derived from the sample against spectra obtained from standards made from pure oxides and carbonates. Standard concentrations are geometrically spaced over any given order of magnitude of concentration as follows: 100, 50, 20, 10, and so forth. Samples whose concentrations are estimated to fall between those values are assigned values of 70, 30, 15, 7, and so forth. The precision of the analytical method is approximately plus or minus one reporting unit at the 83 percent confidence level and plus or minus two reporting units at the 96 percent confidence level (Motooka and Grimes, 1976). 

EXPLANATION OF TABLES

Table 1 lists the limits of determination for the emission spectrographic procedure used. Table 2 lists the spectrographic analytical data. Deleted from table 2 are the elements arsenic, gold, cadmium, and antimony. Cadmium was not detected in any sample. Arsenic, gold, and antimony were rarely detected; where their presence was determined the respective concentrations are noted in footnotes. The data in table 2 are arranged so that column 1 contains the assigned field number; the numeric portion denotes the site on plate 1 where the sample was collected. The data are subdivided into 15-minute quadrangles to aid in finding the sites on plate 1. Areas presently covered by 7.5-minute quadrangles are systematically lumped in 15-minute areas. The order of listing the areas in table 2 is left to right, top to bottom on plate 1. 
Cupsupt i c 2.0 1.5 >2.0 >2.0 >2.0 >2.0 >2.0 >2.0 2.0 >2.0 >2.0 >2.0 >2.0 >2.0 2.0 2.0 1.5 N N N N N quads N N N N N N N N N N N N N N N N N
N N N N N N N N N N N N N N N N <1 0 N N N N N N N N N N N N N N N N N
N N N N N N N N N N N -N N N N N N N N 1 /OOO N N N N N N N N
Mo N N N N N N N N N N N N N N N N N N N N N N N N N 15 Nb N N N N <50 N N <50 N N <50 70 <50 N N N N N N N N N N N N
N N N N N N N N N N N N N N N N N N N N N N N N N <200 V W Y
N N N N N N 700 N N N N N N N N N N N N N N N N N N N >2,
a a E E w -a C C C tl O C u »- t> 01 C - -t-01 E C I <a X »- > T) m nj O> T3 o I E fM 01 C 4-O ozzoozoooooozzoozoozooo m OO o m O O fo. o fo. «n fo. ^- OOO ozzzzzozzzzzzzooozzzzooo V V V V V oooooooooooooooooooooooo Oinom«nomOOro.fo.o«nOO«nooOOOu">Ofo. inOOOOZinOOOOOOOmO«nomin«no«n z zzzzzzzzzzzz z z z z z z OOOOOOOOOOOOOOOOO oinoinminOOOOOOOOOininomoooinin OOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOO zzzzzzzzzzzzzzzzzzz z z z OOCOOOOl/^lnO^-O«nlnlnOOOOOOlnOO OOOO OmOOmOOOOOOOOOO OOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOO«-«-«-t- oooooooooooooooooooooooo xzzzzzzzzxxxxxzzxxzxxzxx z o o o o 0000 o o o o o in in rvj in o in O O O O .-«-O »-«- V i- O m f\j in in O O O O O O O O m o 00000 O O in O O t\i r-f-r>-in o o o o o r-fM f\l r-CM O «n o Kl «-O <\t o m in ro «-o «-K1 1*1 O « fM ""> »» (\i in or
Th V U Y Zn Zr quad--cont inued N N N N N N N N N N N N N N N N N N N N N N N N Milan quad-- SH0127AA SH01279A SH01 ADA SH01979 SH01986
1,000 700 700 1,000 700 
N N N N N N N N N N N 1,500 N N N N N N N N N N N N 1,
SI OD N N N N N N 02 N N N N N N N N N N N N N N N N N N
' 00£ 8 3 --a j i usduj PH uioj ^ s i iduie s L N N N N N N N N N N N N 1 N N N N N N N L N L N N N L N N penb u{ 6V * aty pue < 0'2< 0'2< 0'2< 0'2 0'2< 0*2 S'l 0'2< 0'2< 0'2< S'l 0'2< 0'2< S'l 0'2< 0'2< S'l 0'2< 0'2< 0'2< 0'2 0'2 0'2< S'l 0*2 L e luno 1 3d i su i ew S' S' 2' 0' L S' O'L O'L O'L O'l O'l S'l 2* £ ' L' 2* L' S' £' O'l S' L' O'l L' L' S'L W ))3ad$ P10 1 >3d 6 W * ai 6ue jpenb a;ojjua3uo3-]pjauiuj_XApai| S'l 0'2 S' S'L 5* I S'l 0*2 0'2 S' I S'l 0'£ O'l 0* L 0'2 O'l S' L O'l 0' I 0'2 S'l S'L O'S S'l 0'2 0'2 13d aj »: aa j 6ap-2 ^P 311 aubeuiuou L L L L L 01 S L L L L 01 S 2 01 OL S L 02 L £ L L 01 S L id *D a a j6ap-L 2 SV OL 2£ 25 OL 62 2S OL VV SV OL If OS QL S£ £5 OL S2 £S OL LI IS OL SV Lf OL 9S Lf OL 9 8V OL 62 VS OL l£ 9V OL S£ 6S OL 2£ OS OL 61 8S OL Of 9S OL 6V SS OL i IS OL ii 9V OL 8 SS OL 92 ZS QL 02 ZV OZ 6S SS OZ V£ 8V OZ apn j ibuon uojsinan V£ ££ VV SV Z£ VV IV Z£ VV 6L Z£ VV V2 9£ ff OL 0V VV 6 0V VV 8V 2V VV 6V IV V V V2 IV VV £ 1 VV V V 21 V£ VV 92 0£ VV IV Z£ VV 6£ 2£ VV 2S 2£ VV S2 2£ VV IS V£ VV U 6£ VV S 0£ VV V 0£ VV 2£ 2V VV 8£ 0V VV 2 l£ VV £V VV V V apn j L i P i V£Z220HS V69220HS V89220HS VS9220HS V6S220HS VSS220HS VVS220HS V9V220HS VQV220HS V6£220HS VO£220HS 20020HS 966LOHS 266LOHS 696LOHS L9610HS 8V610HS SZVLOHS 29VLOHS 6£VLOHS 62VLOHS V12£LOHS VSl£LOHS VS82 LOHS V2£2LOHS aid.. S J o j siinsaj l P 3 i ; XT eu v--* 2 a^qej.
N N N N N N N N N N N N N N N N N N N N N N N East N N N N N N 1 N N N 1 N N N
N N N N N N N N N N N N N 200 N N N N N N N N N N N N N N N <20 N N N
N N N N N N N 300 <200 N N N N N N N N N N N N N N East N N N N N N N N N 200 N N N N N V Rumf
700 700 N N N N N N N N N N N N N N N N N 500 1/500 N 500 i nued N N N N N <500 N N N N N N N N Zr 1/
1 .0 1.5 2.0 1.0 1 .5 1.0 .7 1.0 1.0 1.0 2.0 1.0 .7 1.5 .7 1.5 2.0 .5 Wi Id >2.0 >2.0 1.5 1.5 >2.0 >2.0 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N River N N N N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N 10 
N N N N N N N N N 700 N N N N N N N N N N N N N N N N N N
N N N N 15.0 N N N N N N N N N N N <1.0 N N N N N N 1.5 N N N N N N N N N N N N N N N 1/

Figure 1 .

 1 Figure 1. Index map, Lewiston and Sherbrooke 1° x 2° quadrangles, 


Table 1 .

 1 --Limits of determination for 31-element emission spectrographic 


			procedure 1			
		[Values in ppm unless noted otherwise]		
	Element	Lower	Upper	Element	Lower	Upper
		limit	limit		limit	1 imit
	Ca, percent	0.1	50	Mn	20	10,000
	Fe, percent	0.1	50	Mo	10	5,000
	Mg, percent	0.05	20	Nb	50	2,000
	Ti , percent	0.005	2	Ni	10	10,000
	Ag	1	10,000	Pb	20	50,000
	As	500	20,000	Sb		20,000
	Au	20	1,000	Sc	10	200
	B	20	5,000	Sn	20	2,000
	Ba	50	10,000	Sr		10,000
	Be	2	2,000	Th		5,000
	Bi	20	2,000	V	20	20,000
	Cd	50	1,000	W		20,000
	Co	10	5,000	Y	20	5,000
	Cr	20	10,000	Zn		20,000
	Cu	10	50,000	Zr	20	2,000
	La	50	2,000			
	limits of determination are double those listed in Grimes and Marranzino
	(1968), because the spectrographic procedure was altered to accommodate for
	spectrographic interferences which commonly occur in samples of heavy	
	minerals.					

Table 2 .

 2 --Ana Iytica I results for nonmagnetic heavy-mineral-concentrate samples from the east half of the Lewiston 1-dfgree by 2-degree quadrangle* Maine and New Hampsiire--continued 


	Zr																																					
	Zn																																					
	y																																					
	U																																					
	Sr Th V	Errol quad--continued																																				
	Sn																																					
	Sc																																					
	Pb																																					
	Ni																																					
	Nb																																					
	Mo	N	10	N	N																																	
	Mn	700	700	1 /OOO	3/000	1/500	700	700	3/000	1/500	2/000	5/000	5/000	2/000	1 /OOO	7,000	5/000	2/000	2/000	2/000	700	700	1 /OOO	1/000	700	1 /500	1/000	700	700	700	1/000	700	1 /500	700	700	1 /OOO	1 /OOO	1 /OOO
	Sample	SH01240A	SH01 244A	SH01 500A	SH01710A	SH01 71 1 A	SH01227	SH01236A	SH01701 A	SH01703A	SH01706A	SH01707A	SH01 708A	SH01 709A	SH01 71 3A	SH01714A	SH01715A	SH01716A	SH01 71 7A	SH01 720A	SH02723	SH02796	SH02828	SH00164A	SH00181 A	SH00182A	SH00187A	SH01 204A	SH01206A	SH0121 3A	SH01215A	SH01 220A	SH01292A	SH01 298A	SH01333A	SH01338A	SH01378A	SHOUUA

Table 2

 2 
			La																											
			Cu																											
	. --Ana lyt ica I results for nonmagnetic heavy-mineral-concentrate samples from the east half of the	Lewiston 1-degree by 2-degree quadrangle* Maine and New Hampsiire--continued	Longitude Ca DCt Fe pet Mg pet T i pet Ag B Ba Be Bi Co Cr Latitude	Phillips Quad	44 53 45	44 54 28	44 47 56	44 58 55	4458 49	44 49 29	44 49 3	44 49 24	44 47 49	44 47 14	4447 33	44 57 39	44 58 41	44 55 35	44 55 42	44 53 33	4454 20	44 53 1	44 50 58	44 55 5	44 54 47	44 55 42	44 55 54	44 56 18	4446 1 1	44 48 31
			Sample		SH01009	SH0101 5	SH0101 7	SH01024	SH01025	SH01043 I/	S HO 104 6 _/	SH01047	SH01059	SH01063	SH01067	SH01063	SH01070A	SH01074	SH01075	SH01076	SH01077 2/	SH01080	SH01087	SH01096	SH01 132	SH01 136	SH01 137	SH01 138	SH01 156	SH01 257A

Table 2 .

 2 -CO -Analytical results for nonmagnetic heavy-mineral-concentrate samplss from the east half of Lewiston 1-degree by 2-degree quadrangle/ Maine and New Hampsiire--continued 


	the

Table 2

 2 
	half of the																								
	nonmagnetic heavy-mineral-concentrate samoles fro the east	by 2-degree quadrangle/ Maine and New Hampsiire--continued																							
	.--Ana lytica I results for	Lewiston 1-degree																							
		Mn	1,000	1,000	700	1,000	700	700	1,000	700	700	700	700	700	1,000	700	700	700	700	1 ,000	1,000	700	1,000	1,000	1,500	700
		Samp I e	SH00223A	SH002AAA	SH00296A	SH00728A	SH00733A	SH00735A	SH00736A	SH007AAA	SH007A6A	SH00750A	SH00756A	SH00759A	SH00765A	SH00767A	SH00772A	SH00776A	SH00859A	SH00863A	SH00870A	SH00876A	SH01021	SH0103A	SH01101	SH01507A

Table 2 .

 2 --Analytica I results for nonmagnetic heavy-mineral-concentrate samples from the east half of the Lewiston 1-degree by 2-degree quadrangle* Maine and New Hampshire continued 


	Sn	Old Speck																								
	Sc	10	N	15	10	10	<10	15	10	N	15	10	10	N	10	30	<1 0	15	15	10	10	<1 0	15	10	15	15
	Pb	30	30	30	30	30	500	30	70	50	70	50	20	20	50	N	30	20	20	30	30	30	70	20	30	30
	Ni	30	10	20	30	10	15	10	20	10	10	<1 0	10	10	10	20	15	30	20	20	15	10	10	10	20	15
	Nb	70	100	100	70	200	70	N	1 50	100	70	100	50	50	1 50	N	70	70	<50	50	N	500	1 50	500	100	100
	Mo	N	<1 0	10	N	10	<1 0	N	N	N	10	10	N	<1 0	15	N	N	N	N	N	N	30	<1 0	50	N	<1 0
	Mn	1,000	700	1,000	700	700	700	1,000	3,000	1,000	1,500	700	1,000	700	1,500	700	1,000	1,000	700	700	1,000	1,000	1,000	700	700	1,000
	Sample	SH01232A	SH01285A	SH0131 5A	SH01321A	SH01A29	SH01A39	SH01A62	SHOU75	SH01948	SH01961	SH01969	SH01992	SH01996	SH02002	SH02230A	SH02239A	SH02240A	SH02246A	SH0225AA	SH02255A	SH02259A	SH02265A	SH02268A	SH02269A	SH02273A

Table 2 .

 2 --Ana lytica I results for nonmagnetic heavy-mineral-concentrate samplss from the east half of the Lewiston 1-deqree by 2-degree Quadrangle/ Maine and New Hampsiire--continued 


	Tipct																																						
	C a pet Fepct Mgpct	Ellis Pond/ Roxbury/																																					
	Long i t ude																																						
	Latitude	44 43 25	44 44 25	44 38 34	44 36 32	44 37 26	44 35 9	44 34 18	44 36 34	44 37 2	44 34 0	44 38 38	44 39 22	44 43 46	44 42 40	44 41 19	44 33 41	44 40 49	44 33 44	44 43 41	44 44 29	44 42 27	44 39 24	44 41 15	44 34 34	44 33 35	44 37 0	44 35 38	44 40 56	44 37 51	44 38 13	44 43 7	44 43 9	44 41 32	44 38 6	44 44 14	44 42 31	44 44 57	44 37 42
	Sample	SH00906A	SH00908A	SH00916	SH00936A	SH00937	SH00945	SH00949A	SH00951	SH00953A	SH00959	SH00972A	SH00973	SH00978A	SH01307A	SH01351A	SH01389A	SH02221A	SH02404	SH02433	SH02439	SH02452	SH02492	SHQ2499	SH00921	SH00928A	SH00942A	SH00964A	SH00981 A	SH00986A	SH00987	SH00990A	SH00991 A	SH00995A 3/	SH01001	SH01006	SH01008	SH01091	SH02512

Table 2 .

 2 --Ana Iytica I results for nonmagnetic heavy-mineral-concentrate samolfs from the east 


	half of the																																						
	Lewiston 1-degree by 2-degree quadrangle* Maine and New Hamosiire--continued	Nb Ni Pb Sc Sn	Ellis Pond/ Roxbury/ East																																				
		Mo	N	N	<1 0	<1 0	10																																
		Mn	1/000	700	700	700	700	1/000	1/000	1/000	1/000	1 /OOO	1/500	700	700	1/000	700	1/000	1/000	1/500	700	1/000	1/000	1/000	700	1 /OOO	1/500	1/000	700	1/500	700	1/000	1/500	1/500	1/000	700	1 /OOO	1/500	1/000	1/500
		Sample	SH00906A	SH00908A	SH00916	SH00936A	SH00937	SH00945	SH00949A	SH00951	SH00953A	SH00959	SH00972A	SH00973	SH00978A	SH01307A	SH01351 A	SH01389A	SH02221 A	SH02404	SH02433	SH02439	SH02452	SH02492	SH02499	SH00921	SH00928A	SH00942A	SH0096AA	SH00981A	SH00986A	SH00987	SH00990A	SH00991A	SH00995A 3 /	SH01001	SH01006	SH01008	SH01091	SH02512

Table 2 .

 2 --An a Iytica I results for nonmagnetic heavy-mineral-concentrate sampljs from the east half of the Lewiston 1-degree by 2-degree quadrangles Maine and New Hampsi ire--continued 


	Long i t ude C a pet	Farm ing ton/New																													
	Lat i tude	|	44 32 44	44 30 33	44 32 39	44 35 10	44 35 46	44 35 47	44 31 37	44 31 35	44 33 38	44 33 37	44 33 9	44 35 32	44 43 1 7	44 40 29	44 42 6	44 44 8	44 40 32	44 41 1	44 43 36	44 38 52	44 39 1 5	44 40 12	44 44 50	44 44 45	44 42 18	44 43 15	44 44 33	44 41 32	44 36 15
	Sample		SH00645A	SH00651 A	SH00652A	SH00658A	SH00663A	SH00665A	SH00700A	SH00703A	SH00709A	SH0071 1 A	SH00721 A	SH00725A	SH00773A	SH00782A	SH00794A	SH00798A	SH00805A	SH0081 3A	SH0081 7A	SH00825A	SH00826A	SH00828A	SH00833A	SH00837A	SH00846	SH00848A	SH00852A	SHQ0856A	SH00969

Table 2 .

 2 --Analytica I results for nonmagnetic heavy-mineral-coneentrate sampl»s from the east half of the Lewiston 1-degree by 2-degree quadrangle/ Maine and New Hampsiire--continued 


	Nb Ni Pb	Farmington/ New																																		
	Mo																																			
	Mn	700	1 /OOO	1/000	700	1/000	700	700	700	700	700	1/500 1/oon	700	1 /OOO	700	700	1 /OOO	1 /OOO	1 /OOO	1 /OOO	1 /OOO	700	700	700	700	1/000	1/000	700	700	1/000	700	700	700	1/000	1/000
	Sample	SH00645A	SH00651 A	SH00652A	SH00658A	SH00663A	SH00665A	SH00700A	SH00703A	SH00709A	SH0071 1 A	SH00721 A	SH00725A	SH00773A	SH00782A	SH00794A	SH00798A	SH00805A	SH0081 3A	SH00817A	SH00825A	SH00826A	SH00828A	SH00833A	SH00837A	SH008A6	SH008A8A	SH00852A	SH00856A	SH00969	SH00312	SH0051 A	SH01803	SH01810	SH01818	SH01820

Table 2 .

 2 --Ana lytica I results for nonmagnetic heavy-mineral-eoncentrate samples from the east half of the Lewiston 1-deqree by 2-depree Quadrangle/ Maine and New Hampsiire--continued 


	C a pet Fe pet Mg pet T i pet	Gilead/ Bethel/ Speckled Mountain/																																						
	Longitude																																							
	Latitude	44 21 1	44 19 39	44 15 39	44 1 7 19	44 17 10	44 20 5	44 19 57	44 20 3	44 22 15	44 19 56	44 1 5 8	44 15 17	44 1 5 9	44 20 51	44 23 0	44 27 13	44 24 43	44 25 49	44 27 35	44 29 42	44 29 22	44 29 1 7	44 21 35	44 22 2	44 20 1	44 20 4	44 21 38	44 19 0	44 21 55	44 21 55	44 20 38	44 28 14	44 29 46	44 29 2	44 28 50	44 29 1	44 26 1 7	44 26 14	44 26 1 7
	Sample	SH00301	SH0030S	SH00320	SH00324	SH00328	SH00338	SH00343	SH00346	SH00351	SH00369	SH0040?	SH00510	SH00512	SH00519	SH00531	SH01822	SH01823	SH01827	SH01845	SH01849	SH01857	SH01859	SH01867	SH01869	SH01876	SH01886	SH01889	SH01893	SH01898	SH01893A	SH01903	SH01922	SH01928	SH01935	SH01943	SH01944	SH01954	SH01957	SH01 960

Table 2 .

 2 --Ana lytica I results for nonmagnetic heavy-mineraI-coneentrate samplss from the east half of the Lewiston 1-degree by 2-degree quadrangle/ Maine and New Hampsiire--continued 


	100	70	50	2	5	7	1 5	7	7	10	5	20	20	7	5	5	7	3	100	10	20	50	50	10	100	50	100	30	50	7	2	7	5	10		5			
	300	500	150	300	200	200	500	700	200	200	300	200	200	300	200	200	300	300	200	200	200	200	300	300	150	150	150	150	150	150	150	500	150	100		150	200	150	300
	000	700	700	200	2,000	700	1/000	500	1/000	1/000	700	300	700	700	700	700	700	700	1/000	1/000	1/500	1 /500	1/000	500	700	300	1/000	1/500	700	1/000	500	1 /OOO	2/000	3/000	700	700	1/000	1/000	1/500

Table 2 .

 2 --Ana Iytical results for nonmagnetic heavy-mineral-concentrate samples from the east half of the Leuiston 1-degree by 2-degree quadrangle* Maine and New Hampsiire--continued 


	o

Table 2 .

 2 Analytical results for nonmagnetic heavy-mineral-concentrate samples from the east half of the Lewiston 1-degree by 2-degree quadrangle/ Maine and New Hampsiire--continued 


	50	30	150	30	30	100	30	30	30	20	20	20	30	30	30	20	30	20	20	20	Worthley	30	30	30	20	100	30	20	30	30	30	20	30	30	30	20	30	30	30	30	30	30	30	20	20	30

Table 2 .

 2 --An a lyticaI results for nonmagnetic heavy-mineral-concentrate samol»s from the east half of the Lewiston 1-degree by 2-degree quadrangle* Maine and New Hamosiire--continued 


	ro ro

Table 2 .

 2 --Ana lytica I results for nonmagnetic heavy-mineral-concentrate samples from the east half of the Leuiston 1-depree by 2-degree quadrangle/ Maine and New Hampsiire--continued ro 


	10	50	10	15	10	<10	10	10	10	10	10	10	10	10	<10	10	10	<10	10	10

Table 2 .

 2 --Ana lytica I results for nonmagnetic heavy-mineral-concentrate samples from the east half of the Lewiston 1-degree by 2-deoree quadrangle* Maine and New Hampstire--continued 


	10	5	10	7	7	5	7	7	7	2	7	5	7	7							
	13	21	26	11	26	0	26	26	25	11	19	1	33	52	2	26	51	0	24	52	37
				26	28	27	23	29	27	22	20	21	21	19	3	0	1	7	8	6	10

20
New Hampshire, James A Domenico, Frank H Howd, Gary A Nowl
Analyses of Heavy-Mineral-Concent rate Samples, East Half of the Lewiston 1° x 2° Quadrangle