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Science Data Dump Versus Scientific Story
Science Data Dump Versus Scientific Story
I. States a topic without a motive
II. Describes method and/or data but doesn’t explain relevance, build forward, or connect successive ideas
III. Lists results and gives interpretations, but doesn’t show a progression of thought or relate back to the main point
IV. Conclusions stated but sound redundant (not reiterative), haven’t been well developed, or not memorable
I. States a topic without a motive
II. Describes method and/or data but doesn’t explain relevance, build forward, or connect successive ideas
III. Lists results and gives interpretations, but doesn’t show a progression of thought or relate back to the main point
IV. Conclusions stated but sound redundant (not reiterative), haven’t been well developed, or not memorable
Science Data Dump
Science Data Dump
Gravity from the Nu’uanu Park to Kailua
GG304 Lab, Garrett Ito
Gravity from the Nu’uanu Park to Kailua
GG304 Lab, Garrett Ito
OutlineOutline
I. Introduction
II. Data and analysis
III. Modeling
IV. Conclusions
I. Introduction
II. Data and analysis
III. Modeling
IV. Conclusions
(No real information about whats to come)
I. Introduction
I. Introduction
Gravity varies over the earth due to variations in mass
Rocks of different types have different densities
Gravity is measured in mGal or 1 millionth of a G-force
Gravity measurements over the Pali will reflect variations in elevation & density
Gravity varies over the earth due to variations in mass
Rocks of different types have different densities
Gravity is measured in mGal or 1 millionth of a G-force
Gravity measurements over the Pali will reflect variations in elevation & density(list of poorly connected facts)
II. Data & Data Analysis
II. Data & Data Analysis
II. Data & Data Analysis
II. Data & Data Analysis
(so what?!)
III. Modeling
III. Modeling
7 km
20 km
III. Modeling
III. Modeling
High density block
Bou
guer
(t
opog
raph
y-co
rrec
ted)
Conclusions Conclusions
I. Gravity decreases with elevation and increases with density
II. Bouguer gravity anomaly is corrected for predictable topographic effects
III. We can model gravity by considering simple solutions of different geometric shapes.
IV. A large dense crustal body exists beneath Kauilua. In fact its about as large as Kilaeua’s magma chamber
I. Gravity decreases with elevation and increases with density
II. Bouguer gravity anomaly is corrected for predictable topographic effects
III. We can model gravity by considering simple solutions of different geometric shapes.
IV. A large dense crustal body exists beneath Kauilua. In fact its about as large as Kilaeua’s magma chamber
I. Defines a question, problem, or hypothesis and tells why its important.
II. Method and/or data is relevant, ideas connect successively and build forward
III. Results and interpretations, show a logical progression of thought or relate back to the main point. Also, shortcomings are acknowledged.
IV. Conclusions reiterate key points, have been well developed, AND are memorable
I. Defines a question, problem, or hypothesis and tells why its important.
II. Method and/or data is relevant, ideas connect successively and build forward
III. Results and interpretations, show a logical progression of thought or relate back to the main point. Also, shortcomings are acknowledged.
IV. Conclusions reiterate key points, have been well developed, AND are memorable
Scientific Journey or Story
Scientific Journey or Story
Searching for the Koolau Magma Chamber With a Gravity Transect Over the Pali
Highway to Kailua
GG304 Lab, Garrett Ito
Searching for the Koolau Magma Chamber With a Gravity Transect Over the Pali
Highway to Kailua
GG304 Lab, Garrett Ito
Gravity reveals, otherwise hidden, deep heterogeneity
Intrusive rocks near- & off-shore Kailua are evidence for ancient Koolau magma chamber
Magma chamber marks the center of the volcano and its size reflects processes of magma plumbing & storage in Hawaiian shields
Gravity reveals, otherwise hidden, deep heterogeneity
Intrusive rocks near- & off-shore Kailua are evidence for ancient Koolau magma chamber
Magma chamber marks the center of the volcano and its size reflects processes of magma plumbing & storage in Hawaiian shields
Objective: Locate and constrain size and density of Koolau intrusive
complex
Objective: Locate and constrain size and density of Koolau intrusive
complex
I. Data: Measure gravity from Nu’uanu Park to Kailua Beach
II. Data Analysis: Remove topographic effects to isolate subsurface
III. Modeling: Quantify size of density anomaly that can fit topography-corrected gravity
IV. Interpretations of intrusive complex size
II. Correct for topography to isolate signal from subsurface
II. Correct for topography to isolate signal from subsurface
Nuuanu Park
Greater distance from Earth
Smaller gravitational pull
II. Correct for topography to isolate signal from subsurface
II. Correct for topography to isolate signal from subsurface
Nuuanu Park
Increases gravitational pull
Mass of Pali Greater
distance from Earth
Smaller gravitational pull
Isolated pull from subsurface
III. Forward modeling to determine location and size of crustal density anomaly
III. Forward modeling to determine location and size of crustal density anomaly
High density block
Bou
guer
(t
opog
raph
y-co
rrec
ted)
IV. Interpretation: frozen magma chamber
IV. Interpretation: frozen magma chamber
> 7 km
Tens of km
-Off-shore distance not well constrained & requires off-shore data -Off-shore distance not well constrained & requires off-shore data
-Given 2D approximation, 7 km is minimum thickness. Much thicker than Kilauea’s active magma chamber but comparable to total thickness of frozen intrusives.
-Given 2D approximation, 7 km is minimum thickness. Much thicker than Kilauea’s active magma chamber but comparable to total thickness of frozen intrusives.
-Perhaps hot/active chamber is only the thin shallowest part, over a taller column of intrusive rocks [Kauahikaua, 2000]?
-Does shield size or height relate to magma chamber size?
-Perhaps hot/active chamber is only the thin shallowest part, over a taller column of intrusive rocks [Kauahikaua, 2000]?
-Does shield size or height relate to magma chamber size?
Searching for the Koolau Magma Chamber With a Gravity Transect Over the Pali
Highway to Kailua
Searching for the Koolau Magma Chamber With a Gravity Transect Over the Pali
Highway to Kailua
• GG304 Pali-Kailua survey reveals an increase in Bouguer gravity toward Kailua by 60-70 mGal
• This is explained by a dense (2950-3050 kg/m3) rock at least 7 km in thickness with southern edge starting in Kailua
• Koolau intrusive complex extends deep, comparable to total intrusive thickness beneath Kilauea Caldera
• GG304 Pali-Kailua survey reveals an increase in Bouguer gravity toward Kailua by 60-70 mGal
• This is explained by a dense (2950-3050 kg/m3) rock at least 7 km in thickness with southern edge starting in Kailua
• Koolau intrusive complex extends deep, comparable to total intrusive thickness beneath Kilauea Caldera
I. Defines a question, problem, or hypothesis and tells why its important.
II. Method and/or data is relevant, ideas connect successively and build forward
III. Results and interpretations, show a logical progression of thought or relate back to the main point. Also, shortcomings are acknowledged.
IV. Conclusions reiterate key points, have been well developed, AND are memorable
I. Defines a question, problem, or hypothesis and tells why its important.
II. Method and/or data is relevant, ideas connect successively and build forward
III. Results and interpretations, show a logical progression of thought or relate back to the main point. Also, shortcomings are acknowledged.
IV. Conclusions reiterate key points, have been well developed, AND are memorable
Scientific Journey or Story
Scientific Journey or Story
