Table 4. Site 1041 lithologic summary.						
"Notes: A = abundant, C+ = very common, C = common, C- = somewhat common, T = trace. Rads = radiolarians, forams = foraminifers, nannos = nannofossils, spicules = sponge spicules, framboids = pyrite framboids, sponges = sponge spicules, and fish = fish bon"						

Core	Major lithology	Color	Fossils	Diagenesis	Minor lithology 	A/C/T

170-1041A-						
1H	1) clayey silt	Medium to light olive green	"C: diatoms, forams, spicules"	Mn reduction	1) glauconite sand	T
	2) silty clay				2) silty clay with glauconite	T


2H	1) silty clay	Olive green	"T: nannos, rads, spicules"	C: pyrite concretions	1) yellowish silty clay + diatoms	T
	2) vitric ash	Light olive green	C-T: diatoms	T: framboids	2) light greenish gray vitric ash	T
				T: dolomite	3) greenish brown crystal vitric ash	C
					4)  lt. gray vitric ash	C+

3X	Silty clay	Dark olive green to olive green	"T: nannos, diatoms, spicules, fish, pollen"	C: framboids	1) yellowish green silty clay	T
				T: dolomite	2) light gray silty sand	T

4X	Silty clay	Dark olive green	"T: nannos, forams, diatoms, spicules"	T-C: framboids	Dark gray vitric ash w/ framboids	T
				T: dolomite		

5X	1) silty clay	Olive green	"T: nannos, forams, spicules, fish , wood and plant debris"	T: framboids	None	
	2) clayey silt	Dark ol.ive green	T-C: diatoms	T: dolomite		

6X	1) silty claystone	Dark olive green	C: diatoms	T: framboids	1) greenish-gray vitric ash	T
	2) clayey siltstone	Olive green	"T: nannos, forams, spicules, pollen"	T: dolomite	2) dark gray sandy siltstone with framboids	T

7X	1) silty claystone	Dark gn-gray	C: diatoms	T: framboids	1) brownish-green crystal-lithic -vitric ash	T
	2) sandy clayey siltstone	Olive green	"T: nannos, spicules"	T: dolomite	2) dark greenish-gray silty claystone	T

8X	Silty claystone with ash	Dark olive green	"C: diatoms, rads, spicules"	C-T: framboids	1) clayey siltstone with siliceous microfossils	C
			T: nannos	T-C: dolomite	2) dark olive green silty claystone	T

9X	1) clayey siltstone	Olive green	"C: diatoms, rads, spicules"	T-C-: framboids	Light gray clayey vitric ash	T
	2) silty claystone		T: nannos	T: dolomite		

10X	1) silty claystone	Dark olive green	C: diatoms	C-T: framboids	Light greenish gray limestone	T
	2) sandy silty claystone		"T: rads, nannos, spicules"	T-C-: dolomite		

11X	Silty claystone	Olive green to dark olive green	C: spicules	T-C-: framboids	Light brown calcareous claystone	T
			"T: nannos, rads, diatoms"	T: dolomite		

12X	Silty claystone	Dark olive green to olive green	"T: nannos, spicules, fish "	T: framboids	1) olive brown claystone	T
			C: diatoms		2) yellow brown vitric ash	T

13X	Silty claystone	Olive green	"T: diatoms, nannos, spicules, fish "	T: framboids	1) brownish-gray amphibole- vitric ash with framboids	T
				T: dolomite		

14X	Claystone	Olive green	"C: nannos, foraminifers"	T: framboids	Brownish green claystone with foraminifers	T
			"T: diatoms, spicules"			

15X	Claystone to silty claystone	Dark olive green	"T: nannos, diatoms, spicules, fish "	T: framboids	Yellow-brown calcareous claystone with nannofossils (burrow fill)	T
				T: dolomite		
				Gas hydrate: 1-5 cm msv pieces		

16X	1) silty claystone	Grayish green to light olive green	"C: diatoms, spicules"	Framboids	None	
	2) claystone with vitric ash		"T: rads, nannos"	Gas hydrate: pieces 1-2 cm by <0.5  cm; dissem.		

17X	Claystone	Grayish olive green	"T: nannos, diatoms, rads, spicules"	T-C-: framboids	Light brownish-gray dolomitic limestone	T (probably fill from upper hole)
				T-A: dolomite 		
				No gas hydrate		

18X	Silty claystone	Grayish olive green to olive green	C: diatoms	C-: framboids	Calcite-cemented crystal-vitric tuff	T (probably fill from upper hole)
			"T: rads, spicules"	T: dolomite		
				A: calcite		
				No gas hydrate		

170-1041B-						
1R	Calcareous claystone	Dark brownish-green	C: nannos	C: framboids	Dolomite concretion	T
			C-: diatoms	T: dolomite		
			"T: rads, spicules"			

2R	1) claystone	Olive green to dark olive green	C: nannos	"C: framboids,"	Crystal-vitric ash cemented with gas hydrate	T (may be infall from upper hole)
	2) silty claystone		"T: diatoms, rads, spics"	 T: dolomite		
				Dissem. gas hydrate; gas hydrate cement		

3R	Silty claystone	Dk olive green	C-: nannos	"T-C-: framboids, dolomite."	None	
			"T: diatoms, rads, spicules, fish "	"Gas hydrate: scattered crystals, fracture fill"		

4R	1) claystone	Olive green to dark olive green	"C: nannos, diatoms"	"T-C-: framboids, dolomite. "	"Greenish-brown claystone with nannofossils, diatoms"	T (burrow fill)
	2) silty claystone		"T: forams, spicules"	 Dissem. & fracture-fill gas hydrate		

5R	1) silty claystone	Dark olive green	"C: nannos, diatoms, fish "	"T-C-: framboids, dolomite."	None	
	2) claystone with nannofossils	Olive green	"T: forams, spicules, pollen, chiton"	Abundant flakes of dissem. gas hydrate		

6R	1) ashy claystone	Olive green 	"C: nannos, diatoms"	"T: framboids, dolomite"	Greenish brown silty claystone with ash	T
	2) claystone	Dark olive green	"T: forams, spicules, fish , pollen"	Gas hydrate: fracture fill and dissem. crystals <1cm		

7R	1) silty claystone 	Dark olive green	C: diatoms	"T-C-: framboids, dolomite"	Brownish green claystone with nannos and diatoms 	T (burrow fill)
	2) ashy claystone	Olive green	"T: nannos, forams, spicules, pollen, fish "	G.H. fracture fill and crystals <1cm		

8R	Claystone	Olive green to dark olive green	Plant fragments	"T: framboids, dolomite"	None	
			C=diatoms	Dissem. fine G.H. crystals & slivers throughout		
			"T=nannos, forams, spicules, fish "			

9R	Claystone	Dk gray green	"T: nannos, diatoms, rads, spicules"	C-: framboids; T: dolomite	"Light gray crystal-vitric ash layer 50 cm thick, cemented by gas hydrate"	C
				G. H.: small dissem. crystals; cement		

10R	Diatomaceous claystone	Dark olive green	C+: diatoms	"T-C-: framboids, carbonates"	None	
			C-: spicules	Gas hydrate: small dissem. crystals		
			"T: nannos, rads, fish"			

11R	1) diatomaceous claystone	Dark olive green	C: diatoms	"T-C-: framboids, carbonates"	1) 6-cm interbeds of  vitric ash cemented by gas hydrate	C
	2) claystone	Olive green	"C-: nannos, spicules"	Gas hydrate: cement 	2) lt. yellowish green clayey limestone	T (fill from upper hole?)
			"T: rads, silicos, fish "			

12R	1) clayey siltstone with diatoms	Olive green	"C: diatoms, spicules"	"T-C-: framboids, dolomite"	Dark gray ashy sandy siltstone	T
	2) diatomaceous claystone		"T: rads, nannos, silicos, fish"	Gas hydrate: small dissem. grains throughout		

13R	Ashy siltstone	Olive green	C+: sponge spicules	"T-C-: framboids, dolomite"	None	
			C: diatoms	Gas hydrate: minor dissem. crystals		
			C-: rads			
			T: nannos			

14R	Calcareous silty claystone	Olive green	"T: nannos, diatoms, rads and spicules"	"C-: framboids, carbonates. diatom dissolution"	Thin dark gray ash layers	T

15R	Silty claystone (mostly wash)	Dark gray green	"T: nannos, diatoms, rads and spicules"	"C-: Framboids, dolomite, calcite."	Light green limestone	T (fill from upper hole?)
				C: Aragonite		
				Diatom dissolution		

16R	1) silty claystone	Dark olive green	"T: nannos, spicules, fish , pollen"	"T-C: framboids, zeolites, dolomite, calcite"	1) light brown limestone with glauconite sand laminae	T (fill from upper hole?)
	2) clayey sandy siltstone	Dark greenish gray		Gas hydrate cement	2) dark gray ashy claystone	T
					"3) thin ash, hydrate cement"	T

17R	Clayey siltstone	Dark greenish gray	C: forams	Carb. cementing ash	1) light brownish gray limestone	T (fill from upper hole?)
			"T: nannos, fish "	Phosphate in calcite concretions	2) dark gray sandy siltstone	T
				T-C-: framboids		

18R	Sandy siltstone	Dark gray	"T: spicules, fish , peloids"	"T-C-: framboids, dolomite; calcite concretions; no G.H."	1) light brownish gray limestone	T (fill from upper hole?)

19R	Clayey siltstone	Dark greenish gray to olive gray	"T: forams, spicules, fish , pollens and spores"	"T: framboids, dolomite, calcite"	1) brown sandy silty claystone 	T
				Gas hydrate cement in ash	2)  3-cm ash layer cemented by gas hydrate 	T

20R	Silty sandstone	Dark greenish-gray	"T: spicules, fish , pollens and spores, diatoms"	"T: framboids, calcite, dolomite"	Dark brown layer of vitric-crystal-lithic tuff	T
				Gas hydrate-cemented siltstone in cc		

21R	Sandy siltstone	Dark greenish-gray	"T: nannos, diatoms, spicules, pollens and spores, fish "	"T: framboids,  zeolites."	Light gray limestone	T (fill from upper hole?)
					Silica dissolution	
				"Calcite,  dolomite cement; gas only"		

22R	1) calcareous claystone 	Olive green 	C: diatoms	T: framboids	None	
	2) clayey siltstone with diatoms	Dark olive green	"T: radiolaria, nannos, spicules, fish, peloids"	"T-C: dolomite, calcite"		

23R	Silty claystone	Dark olive green 	C-: diatoms	T: framboids	Light greenish gray dolomitic limestone	T (fill from upper hole?)
			"T: radiolaria, spicules"	"A-T: dolomite, calcite"		

24R	Ashy claystone	Olive green	C: diatoms	T: framboids	Olive green dolomitic clayey siltstone	T
			"T: radiolaria, nannofossils, forams, spicules, fish"	"T-C-: dolomite, calcite."		

25R	Dolomitic claystone 	Olive green	"T: nannos, forams, rads, diatoms, spicules, fish"	"C-: framboids, dolomite "	Olive green dolomitic clayey siltstone	

170-1041C-						
1R	Claystone	Dark olive green	C: diatoms	T: framboids	Med. greenish gray crystal-vitric ash	C
			"T: rads, sponge spicules"	"T-C: dolomite, calcite"		

2R	Claystone with diatoms	Dark olive green	C+: diatoms	T: framboids	None	
			"T: spicules, nannos, rads, fish"	C-: dolomite		

3R	Silty sandstone with granules and pebbles	Greenish gray	C-: spicules	T-C-: framboids	Greenish gray silty claystone	C
			"T: nannos, forams, diatoms, silicoflagellates, fish"	"T-C: dolomite, calcite; silica dissolution"