Zobrazeno 1 - 9
of 9
pro vyhledávání: '"B. A. Buffett"'
Autor:
B. A. Buffett
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 6, Pp n/a-n/a (2024)
Abstract Fluctuations in the geomagnetic field occur over a broad range of timescales. Short‐period fluctuations are called secular variation, whereas excursions and reversals are viewed as anomalous transient events. An open question is whether di
Externí odkaz:
https://doaj.org/article/29f47d467d4d4537af2b5fee9f89abc9
Autor:
B. A. Buffett
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 12, Pp n/a-n/a (2023)
Abstract Temporal trends in the paleomagnetic dipole moment exhibit the property of positive skewness. On average, positive trends are larger and occur less frequently than negative trends over timescales of several tens of kyr. We explore the origin
Externí odkaz:
https://doaj.org/article/918cd399ebf142b5bf71ff7194860a2c
Autor:
D. Holdenried‐Chernoff, B. A. Buffett
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 12, Pp n/a-n/a (2022)
Abstract Fluctuations in the paleomagnetic field suggest that the dipole decay time is shorter than expected, based on current estimates for the molecular magnetic diffusivity in the outer core. Similar behavior is observed in turbulent dynamo simula
Externí odkaz:
https://doaj.org/article/1b412b270eb8483383980abb17dbe140
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 3, Pp n/a-n/a (2022)
Abstract Observations of relative paleointensity reveal several forms of asymmetry in the time dependence of the virtual axial dipole moment (VADM). Slow decline of the VADM into a reversal is often followed by a more rapid rise back to a quasi‐ste
Externí odkaz:
https://doaj.org/article/44ba8d012b1c4ad8883013a2aea66e98
Autor:
M. Morzfeld, B. A. Buffett
Publikováno v:
Nonlinear Processes in Geophysics, Vol 26, Pp 123-142 (2019)
We consider a stochastic differential equation model for Earth's axial magnetic dipole field. Our goal is to estimate the model's parameters using diverse and independent data sources that had previously been treated separately, so that the model is
Externí odkaz:
https://doaj.org/article/b8597f0c4304496a90be2c24424742f2
Publikováno v:
Biogeosciences, Vol 9, Iss 8, Pp 2859-2878 (2012)
We present a new geologic-time and basin-spatial scale model of the continental margin methane cycle. The model, SpongeBOB, is used to simulate evolution of the carbon cycle in a passive sedimentary continental margin in response to changing oceanogr
Externí odkaz:
https://doaj.org/article/d24d97512773484a94a0f771d286b7a1
Autor:
D. E. Archer, B. A. Buffett
Publikováno v:
Biogeosciences, Vol 9, Iss 8, Pp 3323-3336 (2012)
A two-dimensional model of sediment column geophysics and geochemistry has been adapted to the problem of an accretionary wedge formation, patterned after the margin of the Juan de Fuca plate as it subducts under the North American plate. Much of the
Externí odkaz:
https://doaj.org/article/816840916bde4557b25924de99c48c71
Autor:
D. E. Archer, B. A. Buffett
Publikováno v:
Biogeosciences, Vol 11, Iss 6, Pp 1559-1559 (2014)
No abstract available.
Externí odkaz:
https://doaj.org/article/63c947684779471ca2d63fc4c552e58a