灵敏
发表于 2025-3-23 10:31:34
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讲个故事逗他
发表于 2025-3-23 14:40:05
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天真
发表于 2025-3-23 21:43:35
,Fossil micrometeorites from Finland — Basic features, scientific potential, and characteristics of ers a graben with the dimensions of about 15 × 100 km.. The Satakunta formation correlates with the Jotnian sandstone, overlaying at several locations in Fennoscandia basement rocks, which are part of the about 1.8 to 1.9 Ga old Svecofennian orogenic belt. The age of the Satakunta formation s.s. is
Biguanides
发表于 2025-3-24 01:45:31
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MAIZE
发表于 2025-3-24 03:38:09
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modifier
发表于 2025-3-24 06:42:36
Identification of ancient impact structures: Low-angle faults and related geological features of crg microstructural or mineralogical criteria are very difficult to apply under such conditions. It is proposed that fault patterns in the crater basement can be used diagnostically in eroded structures. On the basis of field observations in the Rochechouart crater, France, and numerical computations,
deforestation
发表于 2025-3-24 14:13:12
Basic remote sensing signatures of large, deeply eroded impact structures,act melt typically reveal a multicircular bull‘s-eye pattern when the projectile struck a subhorizontally bedded sedimentary target. These structures are striking because of steeply dipping strata in the central uplift, sometimes encircling a crystalline plug. The central anomaly is usually surround
密码
发表于 2025-3-24 17:38:40
The terrestrial cratering rate over the last 125 million years,le areas of the Earth‘s landmass. It is shown, over the range 2.5 < . < 100 km, that the number . of craters that are formed per unit area per unit time larger than diameter . does not (as previously thought) follow a simple relationship of the form . ∞ .., where the power . is about -2.0. It is als
ICLE
发表于 2025-3-24 21:42:58
Impact melting of carbonates from the Chicxulub crater,te melts (Jones et al. 1998); these distinctive fragments make up to ∼10 vol% of the breccia. Carbonate clasts and spherules occurring in the ejecta-rich basal part of the coarse clastic sequence, which marks the K/T boundary all around the Gulf of Mexico, may represent distal quenched droplets of c
NAIVE
发表于 2025-3-25 00:27:32
The Gallejaur structure, Northern Sweden,°30′ in northernmost Västerbotten County in northern Sweden. These rocks comprise a variety of different types of breccias: authigenic/autochthonous monomict breccias from the underlying rock units (monomictly brecciated basement), parautochthonous, monomict breccias, and polymict melt breccias. No