SDLRC - Region: Melville Peninsula - All

The Sheahan Diamond Literature Reference Compilation - Technical, Media and Corporate Articles based on Major Region - Melville Peninsula

The Sheahan Diamond Literature Reference Compilation is compiled by Patricia Sheahan who publishes on a monthly basis a list of new scientific articles related to diamonds as well as media coverage and corporate announcements called the Sheahan Diamond Literature Service that is distributed as a free pdf to a list of followers. Pat has kindly agreed to allow her work to be made available as an online digital resource at Kaiser Research Online so that a broader community interested in diamonds and related geology can benefit. The references are for personal use information purposes only; when available a link is provided to an online location where the full article can be accessed or purchased directly. Reproduction of this compilation in part or in whole without permission from the Sheahan Diamond Literature Service is strictly prohibited. Return to Diamond Region Index

Sheahan Diamond Literature Reference Compilation - Scientific Articles by Author for all years
A-An	Ao+	B-Bd	Be-Bk	Bl-Bq	Br+	C-Cg	Ch-Ck	Cl+	D-Dd	De-Dn	Do+	E	F-Fn	Fo+	G-Gh	Gi-Gq	Gr+	H-Hd	He-Hn	Ho+	I	J	K-Kg	Kh-Kn	Ko-Kq	Kr+	L-Lh
Li+	M-Maq	Mar-Mc	Md-Mn	Mo+	N	O	P-Pd	Pe-Pn	Po+	Q	R-Rh	Ri-Rn	Ro+	S-Sd	Se-Sh	Si-Sm	Sn-Ss	St+	T-Th	Ti+	U	V	W-Wg	Wh+	X	Y	Z

Sheahan Diamond Literature Reference Compilation - Media/Corporate References by Name for all years
A	B	C	D-Diam	Diamonds	Diamr+	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z

Each article reference in the SDLRC is tagged with one or more key words assigned by Pat Sheahan to highlight the main topics of the article. In addition most references have been tagged with one or more region words. In an effort to make it easier for users to track down articles related to a specific region, KRO has extracted these region words and developed a list of major region words presented in the Major Region Index to which individual region words used in the article reference have been assigned. Each individual Region Report contains in chronological order all the references with a region word associated with the Major Region word. Depending on the total for each reference type - technical, media and corporate - the references will be either in their own technical, media or corporate Region Report, or combined in a single report. Where there is a significant number of technical references there will be a technical report dedicated to the technical articles while the media and corporate references are combined in a separate region report. References that were added in the most recent monthly update are highlighted in yellow within the Region Report. The Major Region words have been defined by a scale system of "general", "continent", "country", "state or province" and "regional". Major Region words at the smaller scales have been created only when there are enough references to make isolating them worthwhile. References not tagged with a Region are excluded, and articles with a region word not matched with a Major Region show up in the "Unknown" report.

	Kimberlite - diamondiferous		Lamproite - diamondiferous		Lamprophyre - diamondiferous		Other - diamondiferous
	Kimberlite - non diamondiferous		Lamproite - non diamondiferous		Lamprophyre - non diamondiferous		Other - non diamondiferous
	Kimberlite - unknown		Lamproite - unknown		Lamprophyre - unknown		Other - unknown
	Future Mine		Current Mine		Former Mine	Click on icon for details about each occurrence. Works best with Google Chrome.
CITATION: Faure, S, 2010, World Kimberlites CONSOREM Database (Version 3), Consortium de Recherche en Exploration Minérale CONSOREM, Université du Québec à Montréal, Numerical Database on consorem.ca. NOTE: This publicly available database results of a compilation of other public databases, scientific and governmental publications and maps, and various data from exploration companies reports or Web sites, If you notice errors, have additional kimberlite localizations that should be included in this database, or have any comments and suggestions, please contact the author specifying the ID of the kimberlite: [email protected]

Melville Peninsula - Technical, Media and Corporate
Posted/ Published	Author	Title	Source	Region	Keywords
DS1990-0426 1990	Dredge, L.A.	The Melville Moraine: sea level change and response of the western Margin of the Foxe Ice Dome, Melville Pen.	Canadian Journal of Earth Sciences, Vol. 27, pp. 1215-24.	Northwest Territories, Melville Peninsula	Geomorphology
DS1995-0033 1995	An, P., Chung, G.F., Rencz, A.N.	Digital lithology mapping from airborne geophysical and remote sensing data in the Melville Peninsula	Remote Sensing of Environment, Vol. 53, No. 2, Aug. pp. 76-84	Northwest Territories, Melville Peninsula	Geophysics -airborne, Remote sensing
DM2003-1698 2003	Financial Post	Diamond firms to merge.. Northern Empire and Stornoway Ventures... Aviat property	Financial Post, May 21, 1/2p.	Nunavut, Melville Peninsula	News item, Northern empire, Stornoway
DM2003-1724 2003	Globe & Mail	Mining firms' stock shines on gem find	Globe and Mail, Feb 4, 1p.	Northwest Territories, Melville Peninsula	News item, Stornoway ventures, Northern Empire Minerals
DM2003-1874 2003	London Mining Journal	Diamonds discovered on Melville Peninsula	London Mining Journal, Vol. 210, 8722, Feb. 7, p. 91.	Northwest Territories, Melville Peninsula	News item, Stornaway, Northern Empire
DM2003-1892 2003	London Mining Journal	Aviat diamonds confirmed	London Mining Journal, Vol. 341, Dec. 12, p. 5.	Nunavut, Melville Peninsula	News item - Stornoway
DM2003-1893 2003	London Mining Journal	Further Aviat stones found...	London Mining Journal, Vol. 340, 8736, May 16, p.336.	Nunavut, Melville Peninsula	News item, Northern Empire Minerals, Stornoway
DC2003-2615 2003	Navigator Exploration Corp	Navigator Exploration and NDT Ventures announce significant diamond exploration	Ndt Ventures Ltd., May 29, 1p.	Nunavut, Melville Peninsula	News item - press release
DC2003-2647 2003	Northern Empire Minerals Ltd	Initial ground geophysics completed on AV-1 kimberlite	Stornoway Ventures Ltd., March 26, 1p.	Nunavut, Melville Peninsula	News item - press release
DC2003-2648 2003	Northern Empire Minerals Ltd	Northern Empire and Stornoway announce combination	Stornoway Ventures Ltd., May 20, 1p.	Nunavut, Melville Peninsula	News item - press release
DC2003-2649 2003	Northern Empire Minerals Ltd	BHP Billiton to purchase 20% interest in Aviat joint venture	Stornoway Ventures Ltd., May 29, 1p.	Nunavut, Melville Peninsula	Press release, BHP Billiton
DC2003-2650 2003	Northern Empire Minerals Ltd, Stornoway Ventures Ltd	Aviat joint venture.. additional diamond results confirm potential regional indicator	Storoway Ventures Ltd., May 8, 2p.	Nunavut, Melville Peninsula	News item - press release
DC2003-2651 2003	Northern Empire Minerals Ltd, Stornoway Ventures Ltd	Aviat diamond joint venture, BHP Billiton offer triggers right of first refusal	Storoway Ventures Ltd., May 5, 1p.	Nunavut, Melville Peninsula	Press release, BHP Billiton Diamonds Inc.
DM2003-2004 2003	Northern Miner	Melville yields diamonds for Northern Empire, Stornoway	Northern Miner, Vol. 88, No. 51, Feb. 10-16, p. 1-2.	Northwest Territories, Melville Peninsula	News item, Northern Empire, Stornoway
DM2003-2010 2003	Northern Miner	Northern Empire and Stornoway will tie the knot	Northern Miner, Vol. 89, 14, May 26- June 1, p.1,2.	Nunavut, Melville Peninsula	News item, Northern Empire, Stornoway
DM2003-2012 2003	Northern Miner	New diamond plays come into view in northern Canada. Churchill area.. Shear	Northern Miner, Vol. 89, 18, June 23-30, p. 1, 6, 14.	Nunavut, Rankin Inlet, Melville Peninsula	News item, Cumberland Resources, Comaplex Minerals
DS2003-1286 2003	Simpson, R.	New Canadian diamond district in Nunavut. Melville Peninsula	Infomine, Feb 4, 1p.	Northwest Territories, Melville Peninsula	News item, Stornoway, Nothern Empire Minerals
DC2003-2733 2003	Stornoway Diamond Corp	AV-1 drilling commences; new kimberlite occurrence discovered	Stornoway Diamond Corporation, August 26, 2p.	Nunavut, Melville Peninsula	Press release, BHP Billiton, Hunter
DC2003-2734 2003	Stornoway Diamond Corp	Stornoway Diamond Corporation: AV: 1 diamond potential expanded.... AV-3 proves	Stornoway Diamond Corporation, Dec. 8, 1p.	Nunavut, Melville Peninsula	News item - press release
DC2003-2735 2003	Stornoway Ventures Ltd	Diamonds discovered on Melville Peninsula, Nunavut, major land position acquired	Northern Empire Minerals Ltd., Feb 3, 2p.	Northwest Territories, Melville Peninsula	News item - press release
DC200412-3810 2003	Dunsmuir Ventures Ltd.	Dunsmuir announces summer exploration program at Nanuq and Nauq South.	Dunsmuir Ventures Ltd., July 7, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release, BHP Billiton
DM200412-2375 2003	Financial Post	Diamond firms to merge.. Northern Empire and Stornoway Ventures... Aviat property.	Financial Post, May 21, 1/2p.	Canada, Nunavut, Melville Peninsula	News item Northern empire, Stornoway
DC200412-3901 2004	Indicator Minerals Inc.	Indicator enters letter agreement with Hunter... for services.	Indicator Minerals, May 19, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DM200412-2674 2003	London Mining Journal	Aviat diamonds confirmed.	London Mining Journal, Vol. 341, Dec. 12, p. 5.	Canada, Nunavut, Melville Peninsula	News item - Stornoway
DM200412-2801 2003	London Mining Journal	Further Aviat stones found....	London Mining Journal, Vol. 340, 8736, May 16, p.336.	Canada, Nunavut, Melville Peninsula	News item Northern Empire Minerals, Stornoway
DC200412-4051 2003	Navigator Exploration Corporation	Navigator Exploration and NDT Ventures announce significant diamond exploration program.	NDT Ventures Ltd., May 29, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200412-4103 2003	Northern Empire Minerals Ltd.	Northern Empire and Stornoway announce combination.	Stornoway Ventures Ltd., May 20, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200412-4104 2003	Northern Empire Minerals Ltd.	BHP Billiton to purchase 20% interest in Aviat joint venture.	Stornoway Ventures Ltd., May 29, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release BHP Billiton
DC200412-4105 2003	Northern Empire Minerals Ltd.	Aviat diamond joint venture, BHP Billiton offer triggers right of first refusal.	Stornoway Ventures Ltd., May 5, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release BHP Billiton Diamonds Inc.
DC200412-4106 2003	Northern Empire Minerals Ltd.	Aviat joint venture.. additional diamond results confirm potential regional indicator sampling identifies new targets.	Stornoway Ventures Ltd., May 8, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release
DM200412-2920 2003	Northern Miner	Northern Empire and Stornoway will tie the knot.	Northern Miner, Vol. 89, 14, May 26- June 1, p.1,2.	Canada, Nunavut, Melville Peninsula	News item Northern Empire, Stornoway
DS200412-1750 2004	Schiller, E.	Do diamonds prefer the Arctic?	Resource World Magazine, Vol. 2, 5, July/August pp. 21.	Canada, Nunavut, Melville Peninsula	News item - overview
DC200412-4283 2003	Stornoway Diamond Corporation	AV-1 drilling commences; new kimberlite occurrence discovered.	Stornoway Diamond Corporation, August 26, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release BHP Billiton, Hunter
DC200412-4285 2004	Stornoway Diamond Corporation	Preliminary 2003 till sampling results received 2004 delineation drilling at AV-1 completed.	Stornoway Diamond Corporation, July 5, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200412-4288 2003	Stornoway Diamond Corporation	Stornoway Diamond Corporation: AV: 1 diamond potential expanded.... AV-3 proves diamondiferous.	Stornoway Diamond Corporation, Dec. 8, 1p.,	Canada, Nunavut, Melville Peninsula	News item - press release
DC200412-4289 2004	Stornoway Diamond Corporation	AV01 outcrop returns diamond grade of 0.88 carats/tonne.	Stornoway Diamond Corporation, April 20, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release, BHP Billiton, Hunter
DC200412-4290 2004	Stornoway Diamond Corporation	Eastern arctic landholdings increased to more than 20 million acres.	Stornoway Diamond Corporation, Feb. 3, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200412-4292 2004	Stornoway Diamond Corporation	Minimum $ 18 Million 2004 Diamond Exploration budget approved: additional diamonds reserved from AV-2. Aviat project.	Stornoway Diamond Corporation, March 2, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200512-2463 2005	Diamondex Resources Ltd.	Diamond ex announces $ 11.52 million financing with Barrick.	Diamondex Resources Ltd., May 2, 1p.	Canada, Nunavut, Melville Peninsula, Boothia Peninsula	News item - press release, Barrick
DC200512-2733 2005	NDT Ventures Ltd.	NDT and Strongbow gain little from 2004 Melville hunt. Gem, Darcpa, Fury properties.	NDT Ventures Ltd., June 17, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release, Strongbow
DC200512-2818 2005	Shear Minerals Ltd.	Commencement of program at Hecla diamond project.	Shear Minerals Ltd., July 18, 1p.	Canada, Northwest Territories, Melville Peninsula	News item - press release
DC200512-2819 2005	Shear Minerals Ltd.	Shear Minerals Ltd. announces New Hecla project and grant of options.	Shear Minerals Ltd., Feb. 10, 1p.	Canada, Northwest Territories, Melville Peninsula	News item - press release
DC200512-2879 2005	Stornoway Diamond Corporation	Spring drilling commences at Aviat.	Stornoway Diamond Corporation, April 13, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release, BHP Billiton
DC200512-2880 2005	Stornoway Diamond Corporation	Stornoway announces 2005 budget for Aviat property.	Stornoway Diamond Corporation, March 18, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release, BHP Billiton, Hunter
DC200512-2881 2004	Stornoway Diamond Corporation	All Aviat kimberlites prove diamondiferous.	Stornoway Diamond Corporation, Dec. 14, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release, BHP Billiton, Hunter
DC200512-2882 2005	Stornoway Diamond Corporation	Aviat drilling update.	Stornoway Diamond Corporation, May 13, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release, BHP, Hunter
DC200512-2896 2005	Strongbow Exploration Inc.	Wales Island exploration program underway kimberlite intersected.	Strongbow Exploration Inc., August 16, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release, BHP Billiton
DC200612-3409 2006	Stornoway Diamond Corporation	Aviat update; new kimberlite intersected east of AV-7.	Stornoway Diamond Corporation, June 28, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200612-3413 2006	Stornoway Diamond Corporation	AV6 kimberlite body grades 0.97 carats per tonne at Aviat.	Stornoway Diamond Corporation, June 21, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200612-3417 2006	Stornoway Diamond Corporation	Additional diamond results from the Melville peninsula. Aviat project.	Storoway Diamond Corporation, March 27, 4p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200612-3422 2006	Stornoway Diamond Corporation	AV7 kimberlite body grades 0.77 carats per tonne at Aviat.	Stornoway Diamond Corporation, July 11, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release, BHBP, Hunter
DC200712-3229 2006	Stornoway Diamond Corporation	An exploration update for the Aviat and Qilligaq diamond projects Melville Peninsula, Nunavut.	34th. Annual Yellowknife Geoscience Forum (November 2006), p. 54-55. abstract	Canada, Nunavut, Melville Peninsula	Exploration - update
DC200712-3236 2007	Stornoway Diamond Corporation	Aviat's eastern sheet complex points to significant tonnage, Stornoway completes 74 tonne mini-bulk sample.	Stornoway Diamond Corporation, Sept. 6, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200712-3247 2007	Stornoway Diamond Corporation	Stornoway reports new diamond results from Aviat kimberlites.	Stornoway Diamond Corporation, Jan. 11, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release, Hunter Exploration
DS200812-0045 2008	Armstrong, J.P.	New advances in the geology of the Aviat kimberlites, Aviat project, Melville Peninsula, Nunavut.	Northwest Territories Geoscience Office, p. 11. abstract	Canada, Nunavut, Melville Peninsula	Brief overview - Stornoway
DC200812-3386 2008	Stornoway Diamond Corporation	Stornoway improves on diamond content of Aviat kimberlites AV1 and AV2 Upper.	Stornoway Diamond Corporation, March 13, 2p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200812-3387 2007	Stornoway Diamond Corporation	Third kimberlite pipe at Aviat proves diamondiferous.	Stornoway Diamond Corporation, Dec. 12, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200812-3396 2008	Stornoway Diamond Corporation	Aviat conceptual study outlines 24.1 - 40.3 million carats of diamonds.	Stornoway Diamond Corporation, October 7, 3p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC200812-3397 2008	Stornoway Diamond Corporation	3.64 carat diamond recovered from AV2 kimberlite at Aviat.	Stornoway Diamond Corporation, Jan. 21, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DS200912-0183 2009	Doornbos, C., Heaman, L.M., Doupe, J.P., England, J., Simonetti, A., Lejeunesse, P.	The first integrated use of in situ U Pb geochronology and geochemical analyses to determine long distance transport of glacial erratics from maIn land Canada into western Arctic Archipelgo.	Canadian Journal of Earth Sciences, Vol. 46, 2, pp. 101-122.	Canada, Melville Peninsula	Geochronology - western Arctic Archipelago
DS201012-0571 2010	Peats, J., Stachel, T., Stern, R., Muehlenbachs, K., Armstrong, J.	Aviat diamonds as a window into the deep lithospheric mantle beneath the northern Churchill province.	38th. Geoscience Forum Northwest Territories, Abstract pp.118-119.	Canada, Northwest Territories, Melville Peninsula	Geochronology - nitrogen, CI
DS201212-0547 2012	Peats, J., Stachel, T., Ster, R.A., Muehlenbachs, K., Armstrong, J.	Aviat diamonds: a window into the deep lithospheric mantle beneath the Northern Churchill Province, Melville Peninsula, Canada.	Canadian Mineralogist, Vol. 50, 3, June pp. 611-624.	Canada, Nunavut, Melville Peninsula	Deposit - Aviat
DC201308-3046 2013	North Arrow Minerals Inc.	North Arrow aquires the Mel and Luxx diamond projects, Nunavut. Anglo Celtic	North Arrow Minerals Inc., July 12, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DC201409-2797 2014	North Arrow Minerals Inc.	North Arrow updates 2014 Qilalugaq project bulk sampling program. 1,500 Q1-4 kimberlite.	North Arrow Minerals Inc., Aug. 5, 1p.	Canada, Nunavut, Melville Peninsula	News item - press release
DS201511-1841 2015	Harris, J.R., Grunsky, E., Behnia, P., Corrigan, D.	Dat a and knowledge-driven mineral prospectivity maps for Canada's north. (**note for Au )	Ore Geology Reviews, Vol. 71, pp. 788-803.	Canada, Nunavut, Melville Peninsula	GIS. IAS
	Abstract: Data- and knowledge-driven techniques are used to produce regional Au prospectivity maps of a portion of Melville Peninsula, Northern Canada using geophysical and geochemical data. These basic datasets typically exist for large portions of Canada's North and are suitable for a "greenfields" exploration programme. The data-driven method involves the use of the Random Forest (RF) supervised classifier, a relatively new technique that has recently been applied to mineral potential modelling while the knowledge-driven technique makes use of weighted-index overlay, commonly used in GIS spatial modelling studies. We use the location of known Au occurrences to train the RF classifier and calculate the signature of Au occurrences as a group from non-occurrences using the basic geoscience dataset. The RF classification outperformed the knowledge-based model with respect to prediction of the known Au occurrences. The geochemical data in general were more predictive of the known Au occurrences than the geophysical data. A data-driven approach such as RF for the production of regional Au prospectivity maps is recommended provided that a sufficient number of training areas (known Au occurrences) exist.
DS201708-1749 2017	Sarkar, C.	Geochronology and mantle source characteristics of kimberlites and related rocks from the Rae Craton, Melville Peninsula, Nunavut, Canada.	11th. International Kimberlite Conference, Poster	Canada, Nunavut, Melville Peninsula	geochronology
DC201711-2653 2017	North Arrow Minerals Inc.	North Arrow discovers diamonds at the Mel project, Nunavut. ML-8	North Arrow Minerals Inc., Oct. 16, 3p.	Canada, Nunavut, Melville Peninsula	News item - press release
DS201809-2082 2018	Sarkar, C., Kjarsgaard, B.A., Pearson, D.G., Heaman, L.M., Locock, A.J., Armstrong, J.P.	Geochronology, classification and mantle source characteristics of kimberlites and related rocks from the Rae craton, Melville Peninsula, Nunavut, Canada.	Mineralogy and Petrology, doi.org/10.1007/ s00710-018-0632-5 20p.	Canada, Nunavut, Melville Peninsula	deposit - Pelly Bay, Darby, Aviat, Qilalugaq
	Abstract: Detailed geochronology along with petrographic, mineralogical and geochemical studies have been conducted on recently found diamond-bearing kimberlitic and related rocks in the Rae Craton at Aviat and Qilalugaq, Melville Peninsula, north-east Canada. Magmatic rocks from the Aviat pipes have geochemical (both bulk rock and isotopic) and mineralogical signatures (e.g., core to rim Al and Ba enrichment in phlogopite) similar to Group I kimberlite. In contrast, Aviat intrusive sheets are similar to ‘micaceous’ Group II kimberlite (orangeite) in their geochemical and mineralogical characteristics (e.g., phlogopite and spinel compositions, highly enriched Sr isotopic signature). Qilalugaq rocks with the least crustal contamination have geochemical and mineralogical signatures [e.g., high SiO2, Al2O3 and H2O; low TiO2 and CO2; less fractionated REE (rare earth elements), presence of primary clinopyroxene, phlogopite and spinel compositions] that are similar to features displayed by olivine lamproites from Argyle, Ellendale and West Greenland. The Naujaat dykes, in the vicinity of Qilalugaq, are highly altered due to extensive silicification and carbonation. However, their bulk rock geochemical signature and phlogopite chemistry are similar to Group I kimberlite. U-Pb perovskite geochronology reveals that Aviat pipes and all rocks from Qilalugaq have an early Cambrian emplacement age (540-530 Ma), with the Aviat sheets being ~30 Ma younger. This volatile-rich potassic ultramafic magmatism probably formed by varying degrees of involvement of asthenospheric and lithospherically derived melts. The spectrum of ages and compositions are similar to equivalent magmatic rocks observed from the nearby north-eastern North America and Western Greenland. The ultimate trigger for this magmatism could be linked to Neoproterozoic continental rifting during the opening of the Iapetus Ocean and breakup of the Rodinia supercontinent.