Náttúrufræðingurinn - 1991, Qupperneq 18
HEIMILDIR
Albritton C.C. jr. 1989. Catastrophic epi-
sodes in Earth history. Chapman and
Hall, London. 221 bls.
Alvarez L.W., Alvarez W., Asaro F. &
Michel H.V. 1980. Extra-terrestrial
cause for the Cretaceous-Tertiary ext-
inction. Science 208. 1095-1108.
Baksi A.K. 1987. Critical evaluation of
the age of the Deccan Traps, India:
Implications for flood-basalt volcanism
and faunal extinctions. Geology 15. 147-
150.
Gallet Y., Weeks R., Vandamme D. &
Courtillot V. 1989. Duration of Deccan
trap volcanism: a statistical approach.
Earth and Planetary Science Letters 93.
273-282.
Ganapathy R. 1980. A major meteorite
impact on the Earth 65 million years
ago. Science 209. 921-923.
Ganapathy R. 1983. The Tungushka
explosion of 1908: discovery of meteor-
itic debris near the explosion site and at
the South Pole. Science 220. 1158-1161.
Ganapathy R., Gartner S. & Ming-Jung
Jiang 1981. Iridium-anomaly at the
Cretaceous-Tertiary boundary in Texas.
Earth and Planetary Science Letters 54.
393-396.
Graup G. & Spettel B. 1989. Mineralogy
and phase-chemistry of an Ir-enriched
pre-K/T layer from the Lattengebirge,
Bavarian Alps, and significance for the
KTB problem. Earth and Planetary
Science Letters 95. 271-290.
Grieve R.A.F. 1987. Terrestrial impact
structures. Annual Review of Earth and
Planetary Sciences 15. 245-270.
Grieve R.A.F. 1989. Manson structure
implicated. Nature 340. 428M29.
Hallam A. 1984. Asteroids and extinction
- no cause for concern. New Scientist
104 (1429). 30-33.
Haraldur Sigurðsson, D’Hondt S., Arthur
M.A., Bralower T.J., Sachos J.C., van
Fossen M. & Channell J.E.T. 1991.
Glass from the Cretaceous/Tertiary
boundary in Haiti. Nature 399. 234—345.
Hildebrand A.R. & Boynton W.V. 1990.
Proximal Cretaceous-Tertiary boundary
impact deposits in the Caribbean.
Science 248. 843-847.
Hsíi K. 1980. Terrestrial catastrophe caus-
ed by cometary impact at the end of the
Cretaceous. Nature 285. 201-203.
Hut P., Alvarez W., Elder W.P., Hansen
T., Kauffman E.G., Keller G.,
Shoemaker E.M. & Weissman P.R.
1987. Comet showers as a cause of mass
extinctions. Nature 329. 118-126.
Jaeger J.-J., Courtillot V. & Tapponier P.
1989. Paleontological view of the ages
of the Deccan Traps, the Cretaceous/
Tertiary boundary, and the India-Asia
collision. Geology 17. 316-319
Javoy M. & Courtillot V. 1989. Intense
acidic volcanism at the Cretaceous-
Tertiary boundary. Earth and Planetary
Science Letters 94. 409-416.
Kaneoka I. 1980. 40Ar/39Ar dating on
volcanic rocks of the Deccan Traps,
India. Earth and Planetary Science Lett-
ers 46. 233-243.
Kent D.V. 1981. Asteroid extinction
hypothesis. Science 211. 648-650.
Koeberl C. 1989. Iridium enrichment in
volcanic dust from blue ice fields, Ant-
arctica, and possible relevance to the
K/T boundary event. Earth and Planet-
ary Science Letters 92. 317-322.
Koeberl C., Sharpton V.L., Murali A.V.
& Burke K. 1990. Kara and Ust-Kara
impact structures (USSR) and their rel-
evance to the K/T boundary event.
Geology 18. 50-53.
Kunk M.J., Izett G.A., Haugerud R.A.
& Sutter J.F. 1989. 40Ar-39Ar dating of
the Manson impact structure: A Creta-
ceous-Tertiary boundary crater candi-
date. Science 244. 1565-1568.
Kyte F.T., & Wasson J.T. 1986. Accretion
rate of extraterrestrial matter; iridium
deposited 33 to 67 million years ago.
Science 232. 1225-1229.
Kyte F.T., Shiming S. & Wasson J.T.
1980. Siderophile-enriched sediments
from the Cretaceous-Tertiary bound-
ary. Nature 288. 651-656.
Melosh H.J., Schneider N.M., Zahnle
K.J. & Latham D. 1990. Ignition of
12