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Volume 18; Issue 4

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Geology
Volume 18; Issue 4

Geology

Volume 18; Issue 4

1

Discrimination of ophiolitic from nonophiolitic ultramafic-mafic allochthons in orogenic belts by the Al/Ti ratio in clinopyroxene

Loucks, Robert R.

Journal:

Year:

1990

Language:

english

File:

PDF, 300 KB

english, 1990

2

Episodic rapid uplift in the Himalaya revealed by 40Ar/39Ar analysis of detrital K-feldspar and muscovite, Bengal fan

Copeland, Peter, Harrison, T. Mark

Journal:

Year:

1990

Language:

english

File:

PDF, 336 KB

english, 1990

3

Comment and Reply on "Neogene extensional collapse in the western Mediterranean (Betic-Rif Alpine orogenic belt): Implications for the genesis of the Gibraltar Arc and magmatic activity"

de Lamotte, Dominique Frizon, Guezou, Jean-Claude, Andrieux, Jean, Albertini, Marie-Anne, Coulon, Michel, Poisson, André, Doblas, Miguel, Oyarzun, Roberto

Journal:

Year:

1990

Language:

english

File:

PDF, 148 KB

english, 1990

4

Generating melt during lithospheric extension: Pure shear vs. simple shear

Latin, Dave, White, Nicky

Journal:

Year:

1990

Language:

english

File:

PDF, 336 KB

english, 1990

5

Use of reaction space in depicting polymetamorphic histories

Schneiderman, Jill S.

Journal:

Year:

1990

Language:

english

File:

PDF, 1.52 MB

english, 1990

6

Apparent isobaric cooling paths from granulites: Two counterexamples from British Columbia and New Hampshire

Selverstone, Jane, Chamberlain, C. Page

Journal:

Year:

1990

Language:

english

File:

PDF, 238 KB

english, 1990

7

Rotation of extension direction in the central Kenya Rift

Strecker, M. R., Blisniuk, P. M., Eisbacher, G. H.

Journal:

Year:

1990

Language:

english

File:

PDF, 1.48 MB

english, 1990

8

Sedimentological evidence for a limited separation between Armorica and Gondwana during the Early Ordovician

Noblet, Ch., Lefort, J. P.

Journal:

Year:

1990

Language:

english

File:

PDF, 283 KB

english, 1990

9

Shear zones in the upper mantle—Relation between geochemical enrichment and deformation in mantle peridotites

Journal:

Year:

1990

Language:

english

File:

PDF, 302 KB

english, 1990

10

Alpine Jurassic ophiolites resemble the modern central Atlantic basement

Lagabrielle, Yves, Cannat, Mathilde

Journal:

Year:

1990

Language:

english

File:

PDF, 303 KB

english, 1990

11

Cathodoluminescence microscopy of myrmekite

Hopson, R. Forrest, Rarnseyer, Karl

Journal:

Year:

1990

Language:

english

File:

PDF, 2.78 MB

english, 1990

12

Br-Cl-Na systematics in Illinois basin fluids: Constraints on fluid origin and evolution

Walter, Lynn M., Stueber, Alan M., Huston, Ted J.

Journal:

Year:

1990

Language:

english

File:

PDF, 267 KB

english, 1990

13

New microtextural criterion for differentiation of compaction and early cementation in fine-grained limestones

Lasemi, Zakaria, Sandberg, Philip A., Boardman, Mark R.

Journal:

Year:

1990

Language:

english

File:

PDF, 1.70 MB

english, 1990

14

Paleosols and the Cretaceous/Tertiary transition in the Big Bend region of Texas

Lehman, Thomas M.

Journal:

Year:

1990

Language:

english

File:

PDF, 280 KB

english, 1990

15

Late Tertiary floral assemblage from upland gravel deposits of the southern Maryland Coastal Plain

McCartan, Lucy, Tiffney, Bruce H., Wolfe, Jack A., Ager, Thomas A., Wing, Scott L., Sirkin, Leslie A., Ward, Lauck W., Brooks, James

Journal:

Year:

1990

Language:

english

File:

PDF, 1.59 MB

english, 1990

16

Channel trenching and climatic change in the southern U.S. Great Plains

Hall, Stephen A.

Journal:

Year:

1990

Language:

english

File:

PDF, 271 KB

english, 1990

17

Magnetostratigraphy, Late Devonian iridium anomaly, and impact hypotheses

Hurley, Neil F., Voo, Rob Van der

Journal:

Year:

1990

Language:

english

File:

PDF, 1.60 MB

english, 1990

18

Reading the Moon's volcanic record by ion microprobe analysis of Apollo 14 glass beads

Papike, J. J., Shearer, C. K., Galbreath, K. C.

Journal:

Year:

1990

Language:

english

File:

PDF, 244 KB

english, 1990

19

Two-stage rifting of Pangea by two different mechanisms

Journal:

Year:

1990

Language:

english

File:

PDF, 304 KB

english, 1990

20

U.S. west coast revisited: An aeromagnetic perspective

Johnson, Peter R., Zietz, Isidore, Bond, Kevin R.

Journal:

Year:

1990

Language:

english

File:

PDF, 1.33 MB

english, 1990

21

Precambrian time units and nomenclature—The geon concept

Journal:

Year:

1990

Language:

english

File:

PDF, 134 KB

english, 1990

22

Angles of repose that exceed modern angles

Mann, C. John, Kanagy II, Sherman P.

Journal:

Year:

1990

Language:

english

File:

PDF, 302 KB

english, 1990

23

Yukon-Tanana terrane: A partial acquittal

Hansen, Vicki L.

Journal:

Year:

1990

Language:

english

File:

PDF, 457 KB

english, 1990

24

Comment and Reply on "Major Proterozoic basement features of the eastern midcontinent of North America revealed by recent COCORP profiling"

Nelson, W. John, Pratt, Thomas, Hauser, Ernest, Nelson, K. Douglas

Journal:

Year:

1990

Language:

english

File:

PDF, 100 KB

english, 1990

25

Comment and Reply on "Late Precambrian crustal extension preserved in Fries fault zone mylonites, southern Appalachians"

Eckert, Jr., James O., Simpson, Carol, Kalaghan, Theresa

Journal:

Year:

1990

Language:

english

File:

PDF, 164 KB

english, 1990

26

Comment and Reply on "Archean protoliths within Early Proterozoic granulitic crust of the west European Hercynian belt: Possible relics of the west African craton"

Journal:

Year:

1990

Language:

english

File:

PDF, 193 KB

english, 1990