basalts in English
Further up section the geology is dominated by a succession of unmetamorphosed but strongly fractured and veined blocky andesites, basalts and tuffaceous rocks.
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1. Basalts synonyms, Basalts pronunciation, Basalts translation, English dictionary definition of Basalts
2. Flood Basalts on Mars and Iceland
3. The Deccan Basalts may have …
4. The Deccan Traps are flood Basalts similar to the Columbia River Basalts of the northwestern United States
5. Large Copper mass from Amygdaloidal basalts
6. Basalts Turn Carbon into Stone for Permanent Storage
7. They are similar to terrestrial Basalts, but have many important differences; for example, mare Basalts show a large negative europium anomaly.
8. Like the underlying flood Basalts, these shields are …
9. Basalts may be broadly classified on a chemical and petrographic basis into two main groups: the tholeiitic and the alkali Basalts
10. Basalts are often porphyritic and can contain mantle xenoliths
11. The basalt tetrahedron is a useful tool for classifying Basalts
12. Mare Basalts formed and crystallized at very low partial oxygen pressures
13. Supposed Beauxites derived from basalts are of the same nature
14. Dome Top Basalts Only: Buy individually or in a three pack
15. Supposed Beauxites derived from basalts are of the same nature
16. These Basalts have been used to determine Colorado River incision rates.
17. When pāhoehoe lava enters the sea it usually forms pillow basalts.
18. The oceanic crust (made of Basalts) is formed on mid-ocean ridges
19. Some basalts of the orogene border seem to be less alkalic.
20. Therefore, these Basalts originated from partial melting of metasomatized asthenospheric (versus lithospheric) mantle
21. Alkali basalts typically have mineral assemblages that lack orthopyroxene but contain olivine.
22. In this respect the Dalma basalts appear to have a modified MORB composition and the closest chemical analogy may be basalts from back-arc basins, i. e. a supra-subduction zone environment.
23. Basalts can also contain quartz, hornblende, biotite, hypersthene (an orthopyroxene) and feldspathoids
24. The mare basalts are denser than the rocks which typify the highlands.
25. The rocks are classified as within-plate alkali basalts and their fractionation products.
26. These Basalts are erupted onto continental crust through fissures rather than typical volcanic edifices
27. The rocks are petrographically similar to but less altered than the Chilcotin basalts.
28. The komatiitic Basalts and the remaining low-MgO Basalts define distinctive clusters and trends on the Al/Ti versus MgO plot, but there is a continuum of compositions into the “nonkomatiitic basalt” grouping
29. Figure 15 shows the oxygen fugacity of mare Basalts as a function of temperature
30. CONTENTS Introduction Environment and occurrence Mineralogy Types of Basalts Origin Deccan traps Conclusion References 2
31. ‘Thick sequences of Basalts form the Morgedal and Gjuve formations and include series of sub-aerial lava flows.’ ‘Further, it is a common vesicle-filling mineral in Basalts.’ ‘It seems unlikely that the final magma pressure would have been the maximum value of magma pressure reached during the intrusive episode, and so flood Basalts
32. Siletzia corresponds geographically to the Coast Range Volcanic Province (or Coast Range basalts), but is distinguished from slightly younger basalts that erupted after Siletzia accreted to the continent and differ in chemical composition.
33. Cenozoic sodic alkali Basalts represent the dominant basalt type in many continental alkali basalt provinces, including northern Europe, eastern Australia, and eastern China (Zhang and O’Reilly, 1997; Zou et al., 2000; Wilson and Patterson, 2001).Sodic alkali Basalts are compositionally similar worldwide (Table 2a) and correspond to Basalts and trachyBasalts with relatively high TiO 2 (∼1
34. Volcanic rocks range from very acidic rhyolites and trachytes to more basic andesites and basalts.
35. Bytownite is also only found in gabbros, whereas labradorite is found in gabbros, basalts, and anorthosites
36. Basalts occur rarely and differ from the andesites only by a slightly higher content in mafic constituents.
37. Mare Basalts are named as such because they frequently constitute large portions of the lunar maria
38. Many alkali basalts may be formed at greater depths, perhaps as deep as 150–200 km.
39. DR4) indicates that these Basalts have shared a similarly heterogenous asthenospheric mantle source in the Cenozoic.
40. The flood Basalts and most of this shield volcano, except for a thin veneer of alkali basalt, are tholeiitic
41. Basalts, basalt series, and basalt classification Basalt in the generic sense = plagioclase + clinopyroxene +/- (olivine, nepheline, hypersthene, quartz, melilite, magnetite)
42. Furthermore, the lack of temporal and spatial variation of Sr-Nd-Hf isotopes of these Basalts (Fig
43. Rare feldspathoid-rich mafic rocks, akin to alkali basalts, may have Na2O + K2O contents of 12% or more.
44. CWU's Nick Zentner presents 'Flood Basalts of the Pacific Northwest' - the 16th talk in his ongoing Downtown Geology Lecture Series
45. This suggests that the mare basalts and the highland rocks have both been derived from mantle rocks of intermediate density.
46. It can be used with te salt, along with urt or efh salts to create icy and stony Basalts
47. Basalts are the rocks which are formed at mid-ocean ridges, and which make up the entire oceanic crust.
48. Decompression melting of the mantle associated with back-arc generation resulted in mantle melting and the formation of the alkalic basalts.
49. Keweenaw Amygdaloidal basalts have long had significant economic importance because native copper (Cu) is one of the more common vesicle-filling mineral
50. At 1100 deg C, the oxygen fugacity in mare Basalts is about 10-13 compared with about 10-58 in