کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5757497 1622721 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characteristics of hydrocarbons in sediment core samples from the northern Okinawa Trough
ترجمه فارسی عنوان
خصوصیات هیدروکربن ها در نمونه های هسته رسوبی از شمال اوکیناوا تیزو
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
Sediment core samples from the northern Okinawa Trough (OT) were analyzed to determine abundances and distributions of hydrocarbons by gas chromatography-mass spectrometer (GC-MS). The results show that the n-alkanes in this sediment core conform to a bimodal distribution, and exhibit an odd-to-even predominance of high molecular weights compared to an even-to-odd predominance in low molecular weight n-alkanes with maxima at C16 and C18. The concentrations of bitumen, alkanes and polyaromatic hydrocarbons (PAHs) were higher in samples S10-07 than all others. Three maturity parameters as well as the ratios between parent phenanthrenes (Ps) and methylphenanthrenes (MPs) in samples S10-07 and S10-17 were higher. The distribution and composition of hydrocarbons in sample S10-07 suggest that one, or several, undetected hydrothermal fields may be present in the region of this sediment core. Results also suggest that volcanism may be the main reason for the observed distribution and composition of hydrocarbons in S10-17 sample.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 115, Issues 1–2, 15 February 2017, Pages 507-514
نویسندگان
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