Hematite-coated microfossils: primary ecological fingerprint or taphonomic oddity of the Paleoproterozoic?

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mars Hematite Site: Potential for Preservation of Microfossils

Carlton C. Allen, Frances Westall, Teresa Longazo, Rachel Schelble, Luke Probst, and Beverly Flood NASA Johnson Space Center, Houston, TX 77058 [email protected] Centre de Biophysique Moleculaire, Orleans France, Hernandez Engineering, Houston, TX 77058, University of Southern California, Los Angeles, CA 90089, Rice University, Houston, TX 77005, Texas A & M University at Galveston, Galv...

متن کامل

Magnetic properties of silica coated spindle-type hematite particles.

Magnetic properties of particles are generally determined from randomly oriented ensembles and the influence of the particle orientation on the magnetic response is neglected. Here, we report on the magnetic characterization of anisotropic spindle-type hematite particles. The easy axis of magnetization is within the basal plane of hematite, which is oriented perpendicular to the spindle axis. T...

متن کامل

Evolutionary distinctiveness, threat status, and ecological oddity in primates.

The EDGE (evolutionarily distinct and globally endangered) conservation program (http://www.edgeofexistence.org) uses a composite measure of threat and phylogenetic isolation to rank species for conservation attention. Using primates as a test case, we examined how species that rank highly with this metric represent the collective from which they are drawn. We considered the ecological and morp...

متن کامل

Successive Cambia: A Developmental Oddity or an Adaptive Structure?

BACKGROUND Secondary growth by successive cambia is a rare phenomenon in woody plant species. Only few plant species, within different phylogenetic clades, have secondary growth by more than one vascular cambium. Often, these successive cambia are organised concentrically. In the mangrove genus Avicennia however, the successive cambia seem to have a more complex organisation. This study aimed (...

متن کامل

Ignoring discards biases the assessment of fisheries' ecological fingerprint.

Understanding the pressures of fisheries on the ecosystem is crucial for effective management. Fishery removals, or catch, are composed of both landings and discards. However, the use of discards data in studies investigating the effect of the fishing pressures is sparse. Here, we explore the individual contribution of both these catch components to the overall pressure of fisheries on the ecos...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Geobiology

سال: 2015

ISSN: 1472-4677

DOI: 10.1111/gbi.12127