دورية أكاديمية
Cretaceous cold-seep communities and methane-derived carbonates in the canadian arctic.
العنوان: | Cretaceous cold-seep communities and methane-derived carbonates in the canadian arctic. |
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المؤلفون: | Beauchamp B, Harrison JC, Nassichuk WW, Krouse HR, Eliuk LS |
المصدر: | Science (New York, N.Y.) [Science] 1989 Apr 07; Vol. 244 (4900), pp. 53-6. |
نوع المنشور: | Journal Article |
اللغة: | English |
بيانات الدورية: | Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print Cited Medium: Print ISSN: 0036-8075 (Print) Linking ISSN: 00368075 NLM ISO Abbreviation: Science Subsets: PubMed not MEDLINE |
أسماء مطبوعة: | Publication: Original Publication: New York, N.Y. : [s.n.] 1880- |
مستخلص: | Lower Cretaceous cold-seep fossil assemblages have been found in the Canadian Arctic Archipelago. Serpulid worm tubes and bivalves are most abundant in these communities; in contrast, fossils are scarce in the surrounding strata. The fossils are contained in an isotopically light (delta(13)C = -25 to -50 per mil) carbonate rock groundmass that is interpreted to have formed from bacterial oxidation of methane. The rocks were deposited at intermediate depth (=400 meters) in a cold marine environment; nearby normal faults may have provided a conduit for seeping methane and hydrogen sulfide needed to fuel chemosynthetic bacteria, and in turn, the higher life forms. |
تواريخ الأحداث: | Date Created: 19890407 Date Completed: 20100702 Latest Revision: 20100608 |
رمز التحديث: | 20231215 |
DOI: | 10.1126/science.244.4900.53 |
PMID: | 17818845 |
قاعدة البيانات: | MEDLINE |
تدمد: | 0036-8075 |
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DOI: | 10.1126/science.244.4900.53 |