RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
41 results for "coral proxy" — page 2 of 3
ZF_5_15 — Submarine Canyons: Underwater Valleys and Turbidity Currents
Submarine canyons are steep-walled, V-shaped valleys incised into the continental shelf and slope that serve as the primary conduits for transporting sediment, organic matter, and pollutants from shallow coastal waters t
ZF_4_08 — Ocean Acidification Paleoclimate Record
Ocean acidification — the decrease in seawater pH caused by absorption of atmospheric CO₂ — is not only a modern phenomenon but has occurred repeatedly throughout Earth's history, leaving distinctive signals in the geolo
ZF_1_12 — El Niño and ENSO: Pacific Oscillation and Global Climate Impact
The El Niño–Southern Oscillation (ENSO) is the most powerful year-to-year climate fluctuation on Earth — a coupled ocean-atmosphere phenomenon centered in the tropical Pacific that affects weather patterns, agriculture,
E_3_15 — Sea-Level Curves: Eustatic Change from LGM to Present
Sea-level curves — graphical reconstructions of how global mean sea level has changed through time — represent one of the most important datasets in Quaternary science, recording the waxing and waning of continental ice
E_2_07 — The 4.2 Kiloyear Event — Bronze Age Climate Catastrophe
The 4.2 kiloyear event (~2200 BCE) was a severe, century-scale aridification episode that constitutes one of the most significant abrupt climate changes of the Holocene. Identified through speleothem, marine sediment, an
E_2_20 — Medieval Warm Period: Climate Optimum and Civilizational Flourishing
The Medieval Warm Period (MWP) — increasingly referred to in scientific literature as the Medieval Climate Anomaly (MCA) to emphasize its complex spatial patterns — was a period of relatively warm climatic conditions acr
E_4_21 — Oxygen Isotope Stages: Marine Isotope Record and Climate Cycles
The marine oxygen isotope record — constructed from measurements of the ratio of oxygen-18 to oxygen-16 (δ¹⁸O) in the calcium carbonate (CaCO₃) shells of foraminifera (single-celled marine organisms) preserved in deep-se
E_1_13 — Cosmic Impact Markers: Nanodiamonds, Microspherules, Platinum
Cosmic impact markers are distinctive mineralogical, geochemical, and textural features preserved in geological strata that provide evidence for extraterrestrial impact events — including asteroid/comet impacts and airbu
E_1_15 — Uranium-Thorium Dating: Methodology and Applications in Deep Time
Uranium-thorium (U-Th) dating, also called uranium-series disequilibrium dating, is a radiometric technique that measures the decay of ²³⁴U to ²³⁰Th (half-life: ~245,620 years) in materials such as speleothems (cave form
J_1_04 — Acoustic & Vibrational Technology
Ancient structures worldwide demonstrate acoustic properties that may or may not have been intentional. The Ħal Saflieni Hypogeum in Malta produces a measured 110 Hz resonance linked to altered consciousness states. The
INTERDOC_08 — Ocean-Climate-Civilization Nexus
The relationship between ocean systems and human civilization is one of the most consequential and least integrated topics in historical analysis — most conventional histories treat the ocean as a static background, when
ZB_2_26 — Collective Consciousness in Colonial Organisms
Colonial organisms — siphonophores, bryozoans, corals, hydra, and the polymorphic protozoans — perform sophisticated coordinated behavior (locomotion, feeding, defense, reproduction) without centralized nervous systems o
ZB_2_03 — Biomineralization and Biological Engineering
Biomineralization — the process by which living organisms produce minerals — represents one of the most sophisticated feats of biological engineering on Earth. From nacre (mother of pearl), whose alternating layers of ar
ZB_1_14 — Animal Architecture: Nests, Webs, Mounds, and Biological Engineering
Animal architecture — the construction of physical structures by non-human organisms for shelter, reproduction, thermoregulation, prey capture, mate attraction, or environmental modification — represents one of the most
ZB_5_29 — Biomineralization: Biological Crystal Engineering from Shells to Bones
Biomineralization — the process by which living organisms produce minerals — is one of the most remarkable achievements of biological engineering, responsible for structures ranging from the calcium carbonate shells of m
G_2_17 — Biogeochemistry and Ancient Environmental Reconstruction
Biogeochemistry — the study of chemical, physical, geological, and biological processes that govern the composition and cycling of elements and compounds in natural environments — provides essential tools for reconstruct
D_1_22 — Pacific Island Megalithic: Nan Madol, Lelu Ruins, and Oceanic Stone Architecture
Nan Madol — a ceremonial complex of 92 artificial islets spread across a shallow lagoon off the southeast coast of Pohnpei (Federated States of Micronesia) — is one of the most enigmatic megalithic sites on Earth and has
D_3_07 — Nan Madol — Megalithic City on the Reef
Nan Madol is a ruined megalithic city located off the southeast coast of Pohnpei (formerly Ponape), Federated States of Micronesia, in the western Pacific Ocean. Built on a series of ~92 artificial islets constructed on
R_4_12 — Mimicry: Batesian, Müllerian, and Aggressive Deception
Mimicry — the resemblance of one organism (the mimic) to another (the model) or to an environmental feature, evolved to deceive a third party (the signal receiver, typically a predator) — is one of the most elegant demon
F_4_10 — Roman Indian Ocean Trade and the Periplus
Rome's Indian Ocean trade network was one of the most extensive commercial systems of the ancient world, linking the Mediterranean to India, Sri Lanka, and Southeast Asia from the 1st century BCE through the 3rd century
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