/* DATA DESCRIPTION:
Citation:	Wakita, Hiroshi; Sano, Yuji; Fujii, Naoyuki; Takeuchi, Akira (1986): (Table 1) 3He/4He and 4He/20Ne ratios of pore gases in sediment at DSDP Sites 84-568 and 90-594 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.792927, 
	Supplement to: Wakita, H et al. (1986): 3He/4He ratios of pore gases in deep-sea sediments, Legs 89 and 90. In: Kennett, JP; von der Borch, CC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 90, 1261-1263, https://doi.org/10.2973/dsdp.proc.90.134.1986
Abstract:	Studies on He isotope ratios of gas and rock samples in various parts of the world have shown a close relation between the 3He/4He ratio and geotectonic features of the sampling area. Emission of primordial He is commonly found in gases and fluid in Cenozoic volcanic areas (mid-ocean ridges, hot spots, and subduction zones), whereas that of radiogenic He is predominant in continental areas. Thus, the 3He/4He ratio is considered a useful tool for evaluating a variety of geotectonic environments.
Project(s):	Deep Sea Drilling Project (DSDP) (URI: http://www.deepseadrilling.org/)
Coverage:	MEDIAN LATITUDE: -16.225650 * MEDIAN LONGITUDE: 42.074000 * SOUTH-BOUND LATITUDE: -45.523500 * WEST-BOUND LONGITUDE: -90.800000 * NORTH-BOUND LATITUDE: 13.072200 * EAST-BOUND LONGITUDE: 174.948000
	DATE/TIME START: 1982-02-08T00:00:00 * DATE/TIME END: 1983-01-03T00:00:00
	MINIMUM DEPTH, sediment/rock: 18.6 m * MAXIMUM DEPTH, sediment/rock: 466.7 m
Event(s):	84-568_Site * LATITUDE: 13.072200 * LONGITUDE: -90.800000 * DATE/TIME: 1982-02-08T00:00:00 * ELEVATION: -2010.0 m * PENETRATION: 4.177 m * RECOVERY: 3.076 m * LOCATION: North Pacific/SLOPE * CAMPAIGN: Leg84 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Composite Core (COMPCORE) * COMMENT: 43 cores; 408 m cored; 9.7 m drilled; 75.4% recovery
	90-594_Site * LATITUDE: -45.523500 * LONGITUDE: 174.948000 * DATE/TIME: 1983-01-03T00:00:00 * ELEVATION: -1204.0 m * PENETRATION: 11.875 m * RECOVERY: 4.964 m * LOCATION: South Pacific/CONT RISE * CAMPAIGN: Leg90 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Composite Core (COMPCORE) * COMMENT: 81 cores; 780.4 m cored; 28.8 m drilled; 63.6% recovery
Parameter(s):	Event label (Event)
	Sample, optional label/labor no (Lab no) * PI: Wakita, Hiroshi
	DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * COMMENT: mbsf
	Helium-3/Helium-4 ratio [10**-4] (3He/4He) * PI: Wakita, Hiroshi * METHOD/DEVICE: see reference(s)
	Helium-3/Helium-4 ratio, standard deviation [±] (3He/4He std dev) * PI: Wakita, Hiroshi * METHOD/DEVICE: see reference(s)
	Helium-4/Neon-20 (4He/20Ne) * PI: Wakita, Hiroshi * METHOD/DEVICE: Mass spectrometry (MS)
License:	Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/)
Size:	36 data points
*/
Event	Lab no	Depth sed [m]	3He/4He [10**-4]	3He/4He std dev [±]	4He/20Ne
84-568_Site	SG-1	191.9	0.00639	0.00013	4.40
84-568_Site	SG-2	240.3	0.00990	0.00020	0.57
84-568_Site	SG-3	261.0	0.00974	0.00009	0.52
90-594_Site	SG-4	399.5	0.00439	0.00007	3.20
90-594_Site	SG-5	447.5	0.00568	0.00021	2.60
90-594_Site	SG-6	449.0	0.00536	0.00009	1.40
90-594_Site	SG-7	466.7	0.00549	0.00030	2.20
90-594_Site	SG-8	466.7	0.00503	0.00011	2.90
90-594_Site	SG-9	18.6	0.01260	0.00030	0.39